CVE-2021-35473
9.1
CRITICAL
CVSS 3.1
EPSS 0.15%
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.
How to fix CVE-2021-35473
To remediate CVE-2021-35473, upgrade the affected package to a fixed version below.
- Debian/lemonldap-ng—upgrade to 2.0.11+ds-4 or later
Is CVE-2021-35473 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.0.11+ds-4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |