What is CVE-2022-3291?

CVE-2022-3291 is a medium-severity vulnerability in GitLab, classified under Deserialization of Untrusted Data. CVSS score: 6.5/10. Published 2022-10-17.

How severe is CVE-2022-3291?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Deserialization in GitLab

CVE-2022-3291

Serialization of sensitive data in GitLab EE affecting all versions from 14.9 prior to 15.2.5, 15.3 prior to 15.3.4, and 15.4 prior to 15.4.1 can leak sensitive information via cache

Vulnerability class: Insecure Deserialization

Published 2022-10-17 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.008 (55.0th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 55th percentile — 55.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: +0.000

Affected products

GitLab — versions >=14.9, <15.2.5, >=15.3, <15.3.4, >=15.4, <15.4.1

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

gitlab.com/gitlab-org/gitlab/-/issues/354299 (Broken Link, Vendor Advisory)
gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-3291.json (Vendor Advisory)

Frequently asked questions

What is CVE-2022-3291?: CVE-2022-3291 is a medium-severity vulnerability in GitLab, classified under Deserialization of Untrusted Data. CVSS score: 6.5/10. Published 2022-10-17.
How severe is CVE-2022-3291?: Medium severity. CVSS v3 base score is 6.5 out of 10.