CVE-2019-15941 json
OpenID Connect Issuer in LemonLDAP::NG 2.x through 2.0.5 may allow an attacker to bypass access control rules via a crafted OpenID Connect…
published 2019-09-25 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-6842
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 2.5%
- EPSS 2.5% chance of exploitation in 30 days, percentile 84%
- public exploits
- 0
- none known
Summary
OpenID Connect Issuer in LemonLDAP::NG 2.x through 2.0.5 may allow an attacker to bypass access control rules via a crafted OpenID Connect authorization request. To be vulnerable, there must exist an OIDC Relaying party within the LemonLDAP configuration with weaker access control rules than the target RP, and no filtering on redirection URIs.
Patch / fix
- lemonldap-ng Debian 14, Debian 13, Debian 12 2.0.6+ds-1
debian advisories DEBIAN-CVE-2019-15941
Exploit prediction
2.46% chance of exploitation in the next 30 days, higher than 84% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
Classification
- Weakness
-
- CWE-863 Incorrect Authorization
References
-
debian.org
/security/2019/dsa-4533
vendor-advisory, third-party-advisory
-
gitlab.ow2.org
/lemonldap-ng/lemonldap-ng/issues/1881
third-party-advisory
-
projects.ow2.org
/view/lemonldap-ng/lemonldap-ng-2-0-6-is-out/
third-party-advisory
-
seclists.org
/bugtraq/2019/Sep/46
mailing-list, third-party-advisory
Sources
- CVE List CVE-2019-15941
- NVD CVE-2019-15941
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