CVE-2026-88765
HIGH 8.5GitLab has remediated an issue in GitLab EE affecting all versions from 12.3 to 19.1.8, 19.2 before 19.2.6, and 19.3 before 19.3.2 under certain conditions could allow an authenticated user to achieve remote code execution by importing a specially crafted Git project export to overflow the Unicode conversion buffer used in Advanced Search indexing.
Severe if exploited (CVSS 8.5), but no known exploitation and low modeled probability. Patch on a normal cadence.
Exploitation likelihood
0.7%chance of exploitation in 30 days · 52nd percentile
Impact if exploited
8.5CVSS 3.1 · HIGH
- ConfidentialityHigh
- IntegrityHigh
- AvailabilityHigh
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: Needs a race window or specific setup
✓ 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-77: : Improper Neutralization of Special Elements used in a Command ('Command Injection')
- CWE-787: Out-of-bounds write
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
References and research data (JSON)
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Gitlab | Gitlab | ≥ 12.3.0 and < 19.1.8 |
| Gitlab | Gitlab | ≥ 19.2.0 and < 19.2.6 |
| Gitlab | Gitlab | ≥ 19.3.0 and < 19.3.2 |
All CVSS metrics
- HIGH 8.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H - HIGH 8.5 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
References
Exploit-tagged references (not proof of a PoC)
- https://hackerone.com/reports/3990469 CVE record · GitLab · Updated 2026-09-15T17:05:55.281Z
NVD · CVE-2026-88765 · Updated 2026-09-28T19:07:20.790
Advisories
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-78869 EUVD · EUVD-2026-78869
Technical & other
- https://gitlab.com/gitlab-org/gitlab/-/work_items/627435 CVE record · GitLab · Updated 2026-09-15T17:05:55.281Z
NVD · CVE-2026-88765 · Updated 2026-09-28T19:07:20.790