CVE-2023-1265

Severity: medium (CVSS 4.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-05-03 · updated 2026-06-17
Weakness: CWE-384

Description

An issue has been discovered in GitLab affecting all versions starting from 11.9 before 15.9.6, all versions starting from 15.10 before 15.10.5, all versions starting from 15.11 before 15.11.1. The condition allows for a privileged attacker, under certain conditions, to obtain session tokens from all users of a GitLab instance.

Affected products

GitLab: from 11.9 before 15.9.6; from 15.10 before 15.10.5; from 15.11 before 15.11.1 — fixed in 15.10.5, 15.11.1, 15.9.6

How to fix

Upgrade to a fixed version: GitLab 15.10.5, 15.11.1, 15.9.6. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-1265.json
https://gitlab.com/gitlab-org/gitlab/-/issues/394960
https://hackerone.com/reports/1888690
https://gitlab.com/gitlab-org/cves/-/blob/master/2023/CVE-2023-1265.json
https://gitlab.com/gitlab-org/gitlab/-/issues/394960
https://hackerone.com/reports/1888690

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