openldap-bugs August 2025

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[Issue 10387] New: Reverse lookup does not work for IPv6 addresses proxied over IPv4
by openldap-its＠openldap.org 17 Sep '25

17 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=10387 Issue ID: 10387 Summary: Reverse lookup does not work for IPv6 addresses proxied over IPv4 Product: OpenLDAP Version: 2.6.10 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: +openldap(a)Eero.xn--Hkkinen-5wa.fi Target Milestone: --- I have an IPv4/IPv6 reverse proxy server which listens for ldap[s]:// connections and forwards them using the proxy procotol to an IPv4-only slapd server which listens for pldap[s]:// connections. The slapd server has the global olcReverseLookup setting set to TRUE. The reverse lookup works as expected if an LDAP client connects to the reverse proxy using IPv4. However, if the LDAP client connects to the reverse proxy using IPv6, the reverse lookup does not work. The slap_listener function in the servers/slapd/daemon.c file accepts a connection (https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_6_10/s…). Because the reverse proxy connects to the slapd server using the proxy protocol over IPv4, this fills the from variable with an IPv4 address and sets the len variable to the size of the struct sockaddr_in. This is correct. The slap_listener function detects that the connection is proxied (https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_6_10/s…) and uses the proxyp function to get the address of the LDAP client. This fills the from variable with an IPv4 or an IPv6 address (depending on whether the LDAP client used IPv4 or IPv6 to connect the reverse proxy) but does not update the len variable. The slap_listener function detects that reverse lookup is to be used (https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_6_10/s…) and used the ldap_pvt_get_hname function to get the reverse name (https://git.openldap.org/openldap/openldap/-/blob/OPENLDAP_REL_ENG_2_6_10/s…) passing the address of the from variable, which may contain either an IPv4 or an IPv6 address, and the value of the len variable, which is equal to the size of the struct sockaddr_in. This is correct for IPv4 but not for IPv6. Either the slap_listener function or the proxyp function should update the value of the len variable. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10360] New: delta-sync can apply old mods
by openldap-its＠openldap.org 17 Sep '25

17 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=10360 Issue ID: 10360 Summary: delta-sync can apply old mods Product: OpenLDAP Version: 2.6.9 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: hyc(a)openldap.org Target Milestone: --- This might be related to #10358, but not sure. In delta MPR, if an older mod is received on an entry after a newer mod has already been applied by a local user, the older mod is applied and the newer mod is lost. The incoming replication ops are checked for freshness by check_csn_age() but that only checks the incoming cookieCSN against contextCSNs of the same SID. I.e., that check only prevents duplicate mods being replicated multiple times from the same remote provider. If check_csn_age() passes, then syncrepl_message_to_op() is invoked which just applies the mod. It doesn't check the mod or cookieCSN against the entry's current entryCSN. The code in syncrepl_op_mod() performs the checks we need. The code just needs to be pulled into a new function so it can be used in both places. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10369] New: Error when trying to modify the olcDbCheckpoint attr: 'olcMultiProvider' cannot have multiple values
by openldap-its＠openldap.org 08 Sep '25

08 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=10369 Issue ID: 10369 Summary: Error when trying to modify the olcDbCheckpoint attr: 'olcMultiProvider' cannot have multiple values Product: OpenLDAP Version: 2.6.10 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: elecharny(a)apache.org Target Milestone: --- When trying to modify the olcDbCheckpoint, I get an error on the olcMultiProvider attribute Here are the logs I get: juil. 17 13:03:32 openldap1 slapd[17224]: conn=1012 op=3 MOD dn="olcDatabase={3}mdb,cn=config" juil. 17 13:03:32 openldap1 slapd[17224]: conn=1012 op=3 MOD attr=olcDbCheckpoint juil. 17 13:03:32 openldap1 slapd[17224]: slap_get_csn: conn=1012 op=3 generated new csn=20250717130332.671384Z#000000#00b#000000 manage=1 juil. 17 13:03:32 openldap1 slapd[17224]: slap_queue_csn: queueing 0x7f02cc104b80 20250717130332.671384Z#000000#00b#000000 juil. 17 13:03:32 openldap1 slapd[17224]: Entry (olcDatabase={3}mdb,cn=config), attribute 'olcMultiProvider' cannot have multiple values juil. 17 13:03:32 openldap1 slapd[17224]: conn=1012 op=3 RESULT tag=103 err=19 qtime=0.000008 etime=0.000185 text=attribute 'olcMultiProvider' cannot > juil. 17 13:03:32 openldap1 slapd[17224]: slap_graduate_commit_csn: removing 0x7f02cc104b80 20250717130332.671384Z#000000#00b#000000 juil. 17 13:03:32 openldap1 slapd[17224]: conn=1012 op=4 UNBIND Here is the content of the olcDatabase={3}mdb,cn=config entry: "olcDatabase={3}mdb,cn=config", { "objectClass":[ "olcDatabaseConfig", "olcMdbConfig" ], "olcDatabase":"{3}mdb", "olcDbDirectory":"/usr/local/openldap/data/worteks/", "olcSuffix":[ "o=service,o=worteks" ], "olcAccess":[ "{0}to * by dn=\"gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth\" read by dn=\"uid=repl,ou=security,o=service,o=worteks\" read by anonymous auth by * none break", "{1}to attrs=userPassword by * none", "{2}to dn.subtree=\"ou=security,o=service,o=worteks\" by * none", "{3}to * by * none" ], "olcAddContentAcl":true, "olcLimits":[ "{0}dn=\"uid=repl,ou=security,o=service,o=worteks\" size=unlimited time=unlimited", "{1}dn=\"gidNumber=0+uidNumber=0,cn=peercred,cn=external,cn=auth\" size=unlimited time=unlimited" ], "olcRootDN":"cn=admin,o=service,o=worteks", "olcRootPW":"secret", "olcSyncrepl":[ "{0}rid=012 provider=ldap://openldap1:10389 binddn=\"uid=repl,ou=security,o=service,o=worteks\" bindmethod=simple credentials=\"secret\" searchbase=\"o=service,o=worteks\" logbase=\"cn=accesslog\" logfilter=\"(&(objectClass=auditWriteObject)(reqResult=0))\" type=refreshAndPersist retry=\"5 +\" timeout=1 syncdata=accesslog", "{1}rid=011 provider=ldap://openldap2:10389 binddn=\"uid=repl,ou=security,o=service,o=worteks\" bindmethod=simple credentials=\"secret\" searchbase=\"o=service,o=worteks\" logbase=\"cn=accesslog\" logfilter=\"(&(objectClass=auditWriteObject)(reqResult=0))\" type=refreshAndPersist retry=\"5 +\" timeout=1 syncdata=accesslog" ], "olcMultiProvider":true, "olcDbCheckpoint":"1024 1", "olcDbNoSync":true, "olcDbIndex":[ "entryUUID eq", "objectClass eq", "entryCSN eq", "uid eq", "mailboxServiceIMAP eq", "mailboxServicePOP eq", "mailPrimaryAddress eq", "mailAlternativeAddress eq", "mailboxHiddenAlias eq" ], "olcDbMaxSize":137438953472 } In this context, I'm trying to modify the incorrect olcDbCheckpoint value from '1024 1' to '0 1', and the olcMultiProvider has only one value. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10384] New: str2entry2() leaks attributes on error
by openldap-its＠openldap.org 08 Sep '25

08 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=10384 Issue ID: 10384 Summary: str2entry2() leaks attributes on error Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: slapd Assignee: bugs(a)openldap.org Reporter: ondra(a)mistotebe.net Target Milestone: --- If there's error processing attribute values, the attribute list in ahead is not freed. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10254] New: Allow upgrading password hash on bind
by openldap-its＠openldap.org 08 Sep '25

08 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=10254 Issue ID: 10254 Summary: Allow upgrading password hash on bind Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: me(a)floriswesterman.nl Target Milestone: --- Many OpenLDAP installations are likely to contain relatively old password hashes such as SSHA and CRYPT, as modern alternatives such as Argon are only recent additions. Due to the nature of password hashes, it is of course not possible to "unhash" the old values and rehash them with a more modern algorithm. The presence of these old password hashes poses a liability in case of information leaks or hacks. Currently, the only way to upgrade a password hash is to wait for the user to change their password. This can be sped up by expiring passwords and forcing users to change them. However, this can be slow and frequent password rotation is no longer considered a best practice. It would be a very helpful addition to add support for upgrading a password hash on bind. This is implemented in the 389 directory server: https://www.port389.org/docs/389ds/design/pwupgrade-on-bind.html Essentially, when a user binds, the password is checked like normal. In case of a successful bind, the proposed feature would check the hash algorithm used for the password; and in case it is not equal to the current `olcPasswordHash` value, the user-provided password is rehashed using the new algorithm and stored. This way, the old hashes are phased out more quickly, without being a disturbance to users. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 9343] New: Expand ppolicy policy configuration to allow URL filter
by openldap-its＠openldap.org 08 Sep '25

08 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=9343 Issue ID: 9343 Summary: Expand ppolicy policy configuration to allow URL filter Product: OpenLDAP Version: 2.5 Hardware: All OS: All Status: UNCONFIRMED Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: quanah(a)openldap.org Target Milestone: --- Currently, ppolicy only supports a single global default policy, and past that any policies must be manually added to a given user entry if they are supposed to have something other than the default policy. Also, some sites want no default policy, and only a specific subset to have a policy applied to them. For both of these cases, it would be helpful if it were possible to configure a policy to apply to a set of users via a URL similar to the way we handle creating groups of users in dynlist -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10304] New: Unable to remove item from directory as part of transaction if it is the last item in that directory
by openldap-its＠openldap.org 08 Sep '25

08 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=10304 Issue ID: 10304 Summary: Unable to remove item from directory as part of transaction if it is the last item in that directory Product: OpenLDAP Version: 2.5.13 Hardware: All OS: Linux Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: backends Assignee: bugs(a)openldap.org Reporter: sophie.elliott(a)arcticlake.com Target Milestone: --- I am running my ldap server on Debian 11.3, with the mdb backend, using the backported openldap version 2.5.13. I am not 100% certain if this is an issue with OpenLDAP or liblmdb, but I have been running tests in the repo and it looks like the liblmdb tests work fine, so I think it's with OpenLDAP itself. I have been performing a transaction, and deleting entries from a directory during this transaction. This works fine if the item that I am deleting isn't the last entry in its directory, but when it is I get a MDB_NOTFOUND error on the commit transaction call and the delete doesn't go through. Here is an excerpt of the logs when this happens: ``` 67a64334.14e1fc32 0x766ad2a00700 => index_entry_del( 108, "accessGroupID=f23de82f-3a1c-4f88-86bb-bb07f9a0992d,o=[COMPANY],ou=accessGroups,dc=local,dc=[COMPANY],dc=com" ) 67a64334.14e21912 0x766ad2a00700 mdb_idl_delete_keys: 6c [62d34624] 67a64334.14e22812 0x766ad2a00700 <= index_entry_del( 108, "accessGroupID=f23de82f-3a1c-4f88-86bb-bb07f9a0992d,o=[COMPANY],ou=accessGroups,dc=local,dc=[COMPANY],dc=com" ) success 67a64334.14e23a91 0x766ad2a00700 mdb_delete: txn_commit failed: MDB_NOTFOUND: No matching key/data pair found (-30798) ``` Please let me know if I should submit this issue elsewhere, or if this is something that has already been fixed in a more recent version. I'm also happy to provide more details if necessary. Thank you! -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10371] New: tools don't print useful error codes
by openldap-its＠openldap.org 08 Sep '25

08 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=10371 Issue ID: 10371 Summary: tools don't print useful error codes Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: client tools Assignee: bugs(a)openldap.org Reporter: hyc(a)openldap.org Target Milestone: --- In tools/common.c, if ldap_result() returns an error, this return value is used directly as an LDAP error code in the subsequent call to tool_perror(). That is incorrect; ldap_result() always returns -1 on errors. The actual return code must be retrieved using ldap_get_option(ld, LDAP_OPT_RESULT_CODE,...). So up till now the tools have never printed the actual error message that's relevant to whatever failure occurred. Other applications appear to have copied this erroneous behavior. E.g., in investigating ITS#10370 I see that curl's code does the same thing. -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10374] New: pcache olcOverlay={0}pcache,olcDatabase={2}sql,cn=config: template index 0 invalid
by openldap-its＠openldap.org 08 Sep '25

08 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=10374 Issue ID: 10374 Summary: pcache olcOverlay={0}pcache,olcDatabase={2}sql,cn=config: template index 0 invalid Product: OpenLDAP Version: 2.6.8 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: overlays Assignee: bugs(a)openldap.org Reporter: bertrand(a)jacquin.bzh Target Milestone: --- Hi, As a follow-up from https://bugs.openldap.org/show_bug.cgi?id=10373, it appears that the configuration I had shared can be converted to olc with slaptest, however does not pass validation be loaded when the daemon start: ``` $ slaptest -f /etc/openldap/slapd.conf -F /etc/openldap/slapd.d $ slaptest -u -F /etc/openldap/slapd.d -d stats -d pcache unrecognized log level "pcache" (deferred) Total # of attribute sets to be cached = 16. Template: query template: (mail=) attributes: * + Template: query template: (objectClass=*) attributes: * + Template: query template: (objectClass=*) attributes: mail Template: query template: (objectClass=) attributes: ou cn givenName sn mail telephoneNumber description jpegPhoto objectClass Template: query template: (objectClass=*) attributes: ou cn givenName sn mail telephoneNumber description jpegPhoto objectClass Template: query template: (&(objectClass=)(&(jpegPhoto=*)(|(mail=)))) attributes: ou cn givenName sn mail telephoneNumber description jpegPhoto objectClass Template: query template: (objectClass=) attributes: ou cn givenName sn mail telephoneNumber jid description jpegPhoto objectClass Template: query template: (objectClass=*) attributes: ou cn givenName sn mail telephoneNumber jid description jpegPhoto objectClass Template: query template: (&(objectClass=)(&(jpegPhoto=*)(|(mail=)))) attributes: ou cn givenName sn mail telephoneNumber jid description jpegPhoto objectClass Template: query template: (jid=) attributes: jid config error processing olcOverlay={0}pcache,olcDatabase={2}sql,cn=config: template index 0 invalid (0->15) slaptest: bad configuration directory! ``` From the following slapd.conf: ``` overlay pcache pcache mdb 65536 16 1024 60 directory /var/lib/openldap-data/pcache pcacheMaxQueries 1024 # No TTR, see https://bugs.openldap.org/show_bug.cgi?id=10373 # Cache DN pcacheAttrset 0 1.1 pcacheTemplate (objectClass=) 0 3600 60 0 pcacheTemplate (objectClass=*) 0 3600 60 0 pcacheTemplate (&(objectClass=)(&(jpegPhoto=*)(|(mail=)))) 0 3600 60 0 pcacheAttrset 1 jid pcacheTemplate (jid=) 1 3600 60 0 pcacheAttrset 2 ou cn givenname sn mail telephonenumber jid description jpegphoto objectClass pcacheTemplate (&(objectClass=)(&(jpegPhoto=*)(|(mail=)))) 2 3600 60 0 pcacheTemplate (objectClass=*) 2 3600 60 0 pcacheTemplate (objectClass=) 2 3600 60 0 pcacheAttrset 3 ou cn givenname sn mail telephonenumber description jpegphoto objectClass pcacheTemplate (&(objectClass=)(&(jpegPhoto=*)(|(mail=)))) 3 3600 60 0 pcacheTemplate (objectClass=*) 3 3600 60 0 pcacheTemplate (objectClass=) 3 3600 60 0 pcacheAttrset 4 mail pcacheTemplate (objectClass=*) 4 3600 60 0 pcacheAttrset 5 * + pcacheTemplate (objectClass=*) 5 3600 60 0 pcacheTemplate (mail=) 5 3600 60 0 ``` The following olc configuration get generated ``` $ cat /etc/openldap/slapd.d/cn=config/olcDatabase={2}sql/olcOverlay={0}pcache/olcDatabase={0}mdb.ldif # AUTO-GENERATED FILE - DO NOT EDIT!! Use ldapmodify. # CRC32 20578f61 dn: olcDatabase={0}mdb objectClass: olcMdbConfig objectClass: olcPcacheDatabase olcDatabase: {0}mdb olcDbDirectory: /var/lib/openldap-data/pcache olcDbNoSync: FALSE olcDbMaxReaders: 0 olcDbMaxSize: 10485760 olcDbMode: 0600 olcDbSearchStack: 16 olcDbMaxEntrySize: 0 olcDbRtxnSize: 10000 structuralObjectClass: olcMdbConfig entryUUID: ff5661e1-1259-4408-89a8-68f3c1b36095 creatorsName: cn=config createTimestamp: 20250724124836Z entryCSN: 20250724124836.628803Z#000000#000#000000 modifiersName: cn=config modifyTimestamp: 20250724124836Z $ cat /etc/openldap/slapd.d/cn=config/olcDatabase={2}sql/olcOverlay={0}pcache.ldif # AUTO-GENERATED FILE - DO NOT EDIT!! Use ldapmodify. # CRC32 a8cfafe8 dn: olcOverlay={0}pcache objectClass: olcOverlayConfig objectClass: olcPcacheConfig olcOverlay: {0}pcache olcPcache: mdb 65536 16 1024 60 olcPcacheAttrset: 1 jid olcPcacheAttrset: 2 ou cn givenName sn mail telephoneNumber jid description jp egPhoto objectClass olcPcacheAttrset: 3 ou cn givenName sn mail telephoneNumber description jpegPh oto objectClass olcPcacheAttrset: 4 mail olcPcacheAttrset: 5 * + olcPcacheTemplate: "(mail=)" 5 3600 60 0 0 olcPcacheTemplate: "(objectClass=*)" 5 3600 60 0 0 olcPcacheTemplate: "(objectClass=*)" 4 3600 60 0 0 olcPcacheTemplate: "(objectClass=)" 3 3600 60 0 0 olcPcacheTemplate: "(objectClass=*)" 3 3600 60 0 0 olcPcacheTemplate: "(&(objectClass=)(&(jpegPhoto=*)(|(mail=))))" 3 3600 60 0 0 olcPcacheTemplate: "(objectClass=)" 2 3600 60 0 0 olcPcacheTemplate: "(objectClass=*)" 2 3600 60 0 0 olcPcacheTemplate: "(&(objectClass=)(&(jpegPhoto=*)(|(mail=))))" 2 3600 60 0 0 olcPcacheTemplate: "(jid=)" 1 3600 60 0 0 olcPcacheTemplate: "(&(objectClass=)(&(jpegPhoto=*)(|(mail=))))" 0 3600 60 0 0 olcPcacheTemplate: "(objectClass=*)" 0 3600 60 0 0 olcPcacheTemplate: "(objectClass=)" 0 3600 60 0 0 olcPcachePosition: tail olcPcacheMaxQueries: 1024 olcPcachePersist: FALSE olcPcacheValidate: FALSE olcPcacheOffline: FALSE structuralObjectClass: olcPcacheConfig entryUUID: dbee2888-2741-4298-abc3-81ae4bd9433a creatorsName: cn=config createTimestamp: 20250724124836Z entryCSN: 20250724124836.628803Z#000000#000#000000 modifiersName: cn=config modifyTimestamp: 20250724124836Z ``` Is this a known limitation at the moment ? Cheers, Bertrand -- You are receiving this mail because: You are on the CC list for the issue.

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[Issue 10375] New: [patch] minor patch to const up oids array
by openldap-its＠openldap.org 08 Sep '25

08 Sep '25

https://bugs.openldap.org/show_bug.cgi?id=10375 Issue ID: 10375 Summary: [patch] minor patch to const up oids array Product: OpenLDAP Version: unspecified Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: libraries Assignee: bugs(a)openldap.org Reporter: caolanm(a)gmail.com Target Milestone: --- Created attachment 1084 --> https://bugs.openldap.org/attachment.cgi?id=1084&action=edit minor patch to const up oids array -- You are receiving this mail because: You are on the CC list for the issue.

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openldap-bugs August 2025