CVE-2021-35473

unknown

Published — · Modified —

CVSS v3

—

CVSS v2

—

VIR risk

—

Description

An issue was discovered in LemonLDAP::NG before 2.0.12. There is a missing expiration check in the OAuth2.0 handler, i.e., it does not verify access token validity. An attacker can use a expired access token from an OIDC client to access the OAuth2 handler The earliest affected version is 2.0.4.

Predictions

Exploit likelihood

20%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-35473

OS impact

OS	Version	Status	Fixed in
debian	bookworm	fixed	`2.0.11+ds-4`
debian	bullseye	fixed	`2.0.11+ds-4`
debian	forky	fixed	`2.0.11+ds-4`
debian	sid	fixed	`2.0.11+ds-4`
debian	trixie	fixed	`2.0.11+ds-4`

References

https://security-tracker.debian.org/tracker/CVE-2021-35473

Verify integrity in audit chain (admin only). AS-IS.