CVE-2026-19228

HIGH 8.5 ALL-YEARS

Published 2026-08-12 · Last modified 2026-08-13 · GitLab · NVD: Analyzed

GitLab has remediated an issue in GitLab EE affecting all versions from 19.1 before 19.1.4 and 19.2 before 19.2.2 that under certain conditions could have allowed an authenticated user to cause AI usage to be attributed to another namespace, due to improper authorization of identity information supplied in requests.

ELEVATED IMPACT

Severe if exploited (CVSS 8.5), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.4%chance of exploitation in 30 days · 29th percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

8.5CVSS 3.1 · HIGH · CNA

ConfidentialityNone
IntegrityHigh
AvailabilityLow

What an attacker needs

✓Access: Reachable over the network — no local access needed
⚠Privileges: Requires a low-privilege account
✓User interaction: No user interaction needed
✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Affected

Vendors Gitlab

Products Gitlab

Weakness (CWE)

CWE-639: : Authorization Bypass Through User-Controlled Key

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L

References and research data (JSON)

Known Affected Software Configurations

Vendor	Product	Version range
Gitlab	Gitlab	≥ 19.1.0 and < 19.1.4
Gitlab	Gitlab	≥ 19.2.0 and < 19.2.2

All CVSS metrics

HIGH 8.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L
HIGH 8.5 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:L

References

Advisories

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-57434 ADVISORYEUVD · EUVD-2026-57434

Technical & other

https://gitlab.com/gitlab-org/gitlab/-/work_items/603347 Broken LinkCVE record · GitLab · Updated 2026-08-12T19:04:16.530Z
NVD · CVE-2026-19228 · Updated 2026-08-19T16:32:49.340
https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-2-released/ Release NotesCVE record · GitLab · Updated 2026-08-12T19:04:16.530Z
NVD · CVE-2026-19228 · Updated 2026-08-19T16:32:49.340

Sources: NVD · CVE.org · All sources and attribution · EPSS