CVE-2021-29157
MEDIUM5.5EPSS 0.76%Published: 6/28/2021Modified: 4/28/2026
Description
Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.
Affected packages (2)
- Alpine/dovecotfrom 0, < 2.3.15-r0
- Debian/dovecotfrom 0, < 1:2.3.13+dfsg1-2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |