Generation of Incorrect Security Tokens in GitLab

published 2026-07-29 3 mo ago modified 2026-09-08 2 mo ago also BIT-gitlab-2026-15831 , EUVD-2026-50477

cvss: 4.3; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.3%; EPSS 0.3% chance of exploitation in 30 days, percentile 22%
public exploits: 0; none known

GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.3 and 19.2 before 19.2.1 that under certain conditions could have allowed an authenticated user to bypass administrator-configured tool governance policies due to improper authorization enforcement during token generation.

Patch / fix

fixed in 2

bitnami gitlab 19.1.3, 19.2.1
GitLab GitLab 19.1.3, 19.2.1

CISA SSVC

Exploitation: none
Automatable: no
Technical impact: partial
Assessed: 3 mo ago (2026-07-29)

Exploit prediction

0.30% chance of exploitation in the next 30 days, higher than 22% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
OSV	3.1	4.3	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Affected packages

ecosystem	package	affected	fixed in
bitnami	gitlab	>=19.1.0, <19.1.3 >=19.2.0, <19.2.1	19.1.3 19.2.1

Affected products

GitLab GitLab

Classification

Weakness

CWE-1270 Generation of Incorrect Security Tokens

Technology feeds

GitLab rss critical rss

References

docs.gitlab.com /releases/patches/patch-release-gitlab-19-2-1-released/
release-notes, vendor-advisory, advisory
gitlab.com /gitlab-org/gitlab/-/work_items/605484
broken-link, web
nvd.nist.gov /vuln/detail/CVE-2026-15831
web

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.

Summary