CVE catalog
CVE-2023-28862
lemonldap-ng: CVE-2023-28862
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.96% · Oct 25, 2026
An issue was discovered in LemonLDAP::NG before 2.16.1. Weak session ID generation in the AuthBasic handler and incorrect failure handling during a password check allow attackers to bypass 2FA verification. Any plugin that tries to deny session creation after the store step does not deny an AuthBasic session.
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 | fixed |
| Debian | lemonldap-ng | trixie-security | 2.21.2+ds-1+deb13u4 | fixed |
| Debian | lemonldap-ng | bookworm | 2.16.1+ds-deb12u8 | fixed |
| Debian | lemonldap-ng | bookworm-security | 2.16.1+ds-deb12u10 | fixed |
| Ubuntu | lemonldap-ng | 16.04 | 1.3.3-1 | vulnerable |
| Ubuntu | lemonldap-ng | 16.04 | 1.4.6-1 | vulnerable |
| Ubuntu | lemonldap-ng | 16.04 | 1.4.6-2 | vulnerable |
| Ubuntu | lemonldap-ng | 16.04 | 1.4.6-3 | vulnerable |
| Ubuntu | lemonldap-ng | 18.04 | 1.9.10-1 | vulnerable |
| Ubuntu | lemonldap-ng | 18.04 | 1.9.13-2 | vulnerable |
| Ubuntu | lemonldap-ng | 18.04 | 1.9.14-1 | vulnerable |
| Ubuntu | lemonldap-ng | 18.04 | 1.9.15-1 | vulnerable |
| Ubuntu | lemonldap-ng | 18.04 | 1.9.16-2 | vulnerable |
| Ubuntu | lemonldap-ng | 20.04 | 2.0.5+ds-2 | vulnerable |
| Ubuntu | lemonldap-ng | 20.04 | 2.0.6+ds-2 | vulnerable |
| Ubuntu | lemonldap-ng | 20.04 | 2.0.7+ds-2 | vulnerable |
| Ubuntu | lemonldap-ng | 22.04 | 2.0.11+ds-4 | vulnerable |
| Ubuntu | lemonldap-ng | 22.04 | 2.0.13+ds-3 | vulnerable |
| Ubuntu | lemonldap-ng | 22.04 | 2.0.13+ds-3ubuntu1 | vulnerable |
| Ubuntu | lemonldap-ng | 24.04 | 2.16.2+ds-1 | vulnerable |
| Ubuntu | lemonldap-ng | 24.04 | 2.17.1+ds-1 | vulnerable |
| Ubuntu | lemonldap-ng | 24.04 | 2.17.2+ds-1 | vulnerable |
| Ubuntu | lemonldap-ng | 24.04 | 2.17.2+ds-2 | vulnerable |
| Ubuntu | lemonldap-ng | 24.04 | 2.18.1+ds-1 | vulnerable |
| Ubuntu | lemonldap-ng | 24.04 | 2.18.2+ds-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | lemonldap-ng | source | sid | 2.16.1+ds-1 | not yet assigned | Not reported | Not reported |
| Debian | lemonldap-ng | source | forky | 2.16.1+ds-1 | not yet assigned | Not reported | Not reported |
| Debian | lemonldap-ng | source | trixie | 2.16.1+ds-1 | not yet assigned | Not reported | Not reported |
| Debian | lemonldap-ng | source | bookworm | 2.16.1+ds-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.