CVE-2026-2995
HIGH 7.7 ALL-YEARSGitLab has remediated an issue in GitLab EE affecting all versions from 15.4 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that could have allowed an authenticated user to add email addresses to targeted user accounts due to improper sanitization of HTML content.
Severe if exploited (CVSS 7.7), but no confirmed exploitation. Patch on a normal cadence.
Exploitation likelihood
0.2%chance of exploitation in 30 days · 9th percentile
Impact if exploited
7.7CVSS 3.1 · HIGH · CNA
- ConfidentialityHigh
- IntegrityHigh
- 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: 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 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.
Data snapshot:
Weakness (CWE)
- CWE-80: : Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)
- CWE-79: Cross-site scripting (XSS)
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
References and research data (JSON)
Known Affected Software Configurations
| Vendor | Product | Version range |
|---|---|---|
| Gitlab | Gitlab | ≥ 15.4.0 and < 18.8.7 |
| Gitlab | Gitlab | ≥ 18.9.0 and < 18.9.3 |
| Gitlab | Gitlab | 18.10.0 |
All CVSS metrics
- HIGH 7.7 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N - HIGH 7.7 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N - MEDIUM 5.4 v3.1 · NVD Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
References
Exploit-tagged references (not proof of a PoC)
- https://hackerone.com/reports/3564600 CVE record · GitLab · Updated 2026-03-25T16:33:58.853Z
NVD · CVE-2026-2995 · Updated 2026-06-17T10:32:27.750
Advisories
- https://about.gitlab.com/releases/2026/03/25/patch-release-gitlab-18-10-1-released/ CVE record · GitLab · Updated 2026-03-25T16:33:58.853Z
NVD · CVE-2026-2995 · Updated 2026-06-17T10:32:27.750 - https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-15811 EUVD · EUVD-2026-15811
Technical & other
- https://gitlab.com/gitlab-org/gitlab/-/work_items/591065 CVE record · GitLab · Updated 2026-03-25T16:33:58.853Z
NVD · CVE-2026-2995 · Updated 2026-06-17T10:32:27.750
Sources: NVD · CVE.org · All sources and attribution · EPSS