
CVE catalog
CVE-2026-92288
lemonldap-ng: CVE-2026-92288
- Severity
- Critical · CVSS 9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.44% · Oct 25, 2026
Lemonldap::NG::Portal versions from 2.20.0 before 2.21.6, from 2.22.0 before 2.23.4 for Perl allow unauthenticated OAuth2 token introspection because checkEndPointAuthenticationCredentials does not verify the client secret of a public Relying Party. checkEndPointAuthenticationCredentials() skips the secret comparison for a Relying Party marked public and still returns the authentication method deduced from the request, client_secret_basic or client_secret_post. introspection() rejects a caller only when that method is missing or none, so a request carrying a public client_id and an arbitrary or empty secret passes the endpoint's authentication check. An attacker who holds an access token and knows the client_id of any public Relying Party can confirm the token is active and read its metadata, including scope, audience, expiry and the sub claim. The sub claim is computed with the calling Relying Party's user identifier attribute, so an attacker can translate a user identifier from one Relying Party to another, defeating per-client and pseudonymous identifiers.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | lemonldap-ng | sid | 2.23.4+ds+~0.5.5-1 | fixed |
| Debian | lemonldap-ng | forky | 2.23.4+ds+~0.5.5-1 | fixed |
| Debian | lemonldap-ng | trixie | 2.21.2+ds-1+deb13u3 | vulnerable |
| Debian | lemonldap-ng | trixie-security | 2.21.2+ds-1+deb13u4 | fixed |
| Debian | lemonldap-ng | bookworm | 2.16.1+ds-deb12u8 | not affected |
| Debian | lemonldap-ng | bookworm-security | 2.16.1+ds-deb12u10 | not affected |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | lemonldap-ng | source | sid | 2.23.4+ds-1 | not yet assigned | Not reported | Not reported |
| Debian | lemonldap-ng | source | forky | 2.23.4+ds-1 | not yet assigned | Not reported | Not reported |
| Debian | lemonldap-ng | source | trixie | 2.21.2+ds-1+deb13u4 | not yet assigned | Not reported | Not reported |
| Debian | lemonldap-ng | source | bookworm | Not affected | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 13 (Trixie)]
- [lemonldap-ng]Affected
Details (7)
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-security · Historical versionAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-securityAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u4· all · trixie-securityFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
- [lemonldap-ng-doc]Affected
Source package: [lemonldap-ng]
Details (7)
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-security · Historical versionAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-securityAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u4· all · trixie-securityFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
- [lemonldap-ng-fastcgi-server]Affected
Source package: [lemonldap-ng]
Details (7)
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-security · Historical versionAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-securityAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u4· all · trixie-securityFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
- [lemonldap-ng-handler]Affected
Source package: [lemonldap-ng]
Details (7)
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-securityAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-security · Historical versionAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u4· all · trixie-securityFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
- [lemonldap-ng-uwsgi-app]Affected
Source package: [lemonldap-ng]
Details (7)
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-security · Historical versionAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-securityAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u4· all · trixie-securityFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
- [liblemonldap-ng-common-perl]Affected
Source package: [lemonldap-ng]
Details (7)
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-security · Historical versionAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-securityAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u4· all · trixie-securityFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
- [liblemonldap-ng-handler-perl]Affected
Source package: [lemonldap-ng]
Details (7)
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-security · Historical versionAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-securityAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u4· all · trixie-securityFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
- [liblemonldap-ng-manager-perl]Affected
Source package: [lemonldap-ng]
Details (7)
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-securityAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-security · Historical versionAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u4· all · trixie-securityFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
- [liblemonldap-ng-portal-perl]Affected
Source package: [lemonldap-ng]
Details (7)
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-securityAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-security · Historical versionAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u4· all · trixie-securityFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
Source package: [lemonldap-ng]
Details (7)
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u2· all · trixieAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.23.2+ds-1~bpo13+1· all · trixie-backportsFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-security · Historical versionAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u3· all · trixie-securityAffected · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
2.21.2+ds-1+deb13u4· all · trixie-securityFixed · Fixed:
2.21.2+ds-1+deb13u4dsa · lemonldap-ng · debian · 13
[Debian 12 (Bookworm)]
- [lemonldap-ng]Not affected
Details (6)
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
- [lemonldap-ng-doc]Not affected
Source package: [lemonldap-ng]
Details (6)
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
- [lemonldap-ng-fastcgi-server]Not affected
Source package: [lemonldap-ng]
Details (6)
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
- [lemonldap-ng-handler]Not affected
Source package: [lemonldap-ng]
Details (6)
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
- [lemonldap-ng-uwsgi-app]Not affected
Source package: [lemonldap-ng]
Details (6)
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
- [liblemonldap-ng-common-perl]Not affected
Source package: [lemonldap-ng]
Details (6)
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
- [liblemonldap-ng-handler-perl]Not affected
Source package: [lemonldap-ng]
Details (6)
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
- [liblemonldap-ng-manager-perl]Not affected
Source package: [lemonldap-ng]
Details (6)
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
- [liblemonldap-ng-portal-perl]Not affected
Source package: [lemonldap-ng]
Details (6)
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
- [liblemonldap-ng-ssoaas-apache-client-perl]Not affected
Source package: [lemonldap-ng]
Details (6)
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u8· all · bookwormNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.21.3+ds-1~bpo12+1· all · bookworm-backportsNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
2.16.1+ds-deb12u9· all · bookworm-securityNot affected
dsa · lemonldap-ng · debian · bookworm
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-92288]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-92288]
- [https://security-tracker.debian.org/tracker/CVE-2026-92288]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-92288.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]