In LemonLDAP::NG (aka lemonldap-ng) before 2.0.7, the default Apache HTTP Server…
Priority MEDIUM 50Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
In LemonLDAP::NG (aka lemonldap-ng) before 2.0.7, the default Apache HTTP Server configuration does not properly restrict access to SOAP/REST endpoints (when some LemonLDAP::NG setup options are used). For example, an attacker can insert index.fcgi/index.fcgi into a URL to bypass a Require directive.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00782 56th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:lemonldap-ng:lemonldap\:\:ng:*:*:*:*:*:*:*:* | ng | Vulnerable | lemonldap-ng |
- cpe:2.3:a:lemonldap-ng:lemonldap\:\:ng:*:*:*:*:*:*:*:* Versions ng Vulnerable ·lemonldap-ng
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-19791
- 2026-10-03 Alias added: GHSA-c639-6g37-r8wm
References
More lemonldap-ng Lemonldap vulnerabilities
- TI-2023-13366 An issue was discovered in LemonLDAP::NG before 2.16.1. CVSS 3.1CRITICAL 9.8
- TI-2024-32628 A cross-site scripting (XSS) vulnerability in LemonLDAP::NG before 2.19.3 allows remote… CVSS 3.1MEDIUM 6.1
- TI-2022-17335 In LemonLDAP::NG before 2.0.15. CVSS 3.1MEDIUM 5.9
- TI-2023-23963 A Server-Side Request Forgery issue in the OpenID Connect Issuer in LemonLDAP::NG before… CVSS 3.1MEDIUM 4.3
- TI-2019-09012 LemonLDAP::NG -2.0.3 has Incorrect Access Control. CVSS 3.0CRITICAL 9.8
- TI-2020-15127 An issue was discovered in LemonLDAP::NG through 2.0.8, when NGINX is used. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-19791 · CVE Program
- CVE-2019-19791 · NVD
- FIRST EPSS
- GHSA-c639-6g37-r8wm · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences