CVE-2026-105711
LOW 3.5GitLab has remediated an issue in GitLab CE/EE affecting all versions from 15.0 before 19.3.6, 19.4 before 19.4.3, and 19.5 before 19.5.1 that, when a merge request in a public project referenced a confidential issue from a private project, an authenticated user with no project membership could have read the confidential issue's title, due to a viewer-independent fragment cache key that incorrectly shared per-user-redacted rendered content across all users.
No known exploitation, public exploit, or elevated probability at this time. Track for changes.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 11th percentile
Impact if exploited
3.5CVSS 3.1 · LOW
- ConfidentialityLow
- IntegrityNone
- AvailabilityNone
What an attacker needs
- ✓Access: Reachable over the network — no local access needed
- ⚠Privileges: Requires a low-privilege account
- ⚠User interaction: A user must take an action (click / open a file)
- ✓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
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Tracked sources are checked daily for recent CVEs, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.
Data snapshot:
Weakness (CWE)
- CWE-524: : Use of Cache Containing Sensitive Information
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
References and research data (JSON)
All CVSS metrics
- LOW 3.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N - LOW 3.5 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
References
Exploit-tagged references (not proof of a PoC)
- https://hackerone.com/reports/3963293 CVE record · GitLab · Updated 2026-10-21T23:34:30.427Z
NVD · CVE-2026-105711 · Updated 2026-10-22T16:18:19.040
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-107674 EUVD · EUVD-2026-107674
Technical & other
- https://gitlab.com/gitlab-org/gitlab/-/work_items/632207CVE record · GitLab · Updated 2026-10-21T23:34:30.427Z
NVD · CVE-2026-105711 · Updated 2026-10-22T16:18:19.040 - https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-5-1-released/CVE record · GitLab · Updated 2026-10-21T23:34:30.427Z
NVD · CVE-2026-105711 · Updated 2026-10-22T16:18:19.040