CVE-2026-8589
Last modified
CVE-2026-8589 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields.. EPSS estimates a 0.26% chance of exploitation in the next 30 days.
Description
GitLab has remediated an issue in GitLab EE affecting all versions from 13.1.4 before 18.10.8, 18.11 before 18.11.5, and 19.0 before 19.0.2 that under certain conditions could have allowed an authenticated user to add unauthorized email addresses to a targeted user's account due to improper sanitization of user-supplied input in certain group setting fields.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gitlab | Gitlab | >= 13.1.4, < 18.10.8 |
| Gitlab | Gitlab | >= 18.11.0, < 18.11.5 |
| Gitlab | Gitlab | >= 19.0.0, < 19.0.2 |
References
- https://gitlab.com/gitlab-org/gitlab/-/work_items/600099Issue Tracking
- https://hackerone.com/reports/3722842Permissions Required
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-8589?
How severe is CVE-2026-8589?
How do I fix CVE-2026-8589?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-85877Heap-based buffer overflow in Windows Print Spooler Componen…8.8
- CVE-2026-85878Improper authorization in Azure Database for PostgreSQL allo…9.9
- CVE-2026-85880Heap-based buffer overflow in Windows ALPC allows an authori…7.8
- CVE-2026-85885Improper neutralization of special elements used in a comman…8.8
- CVE-2026-85887Incorrect permission assignment for critical resource in M36…7.7
- CVE-2026-85889Missing authentication for critical function in Azure AI Fou…9.8
- CVE-2026-85892Concurrent execution using shared resource with improper syn…7.8
- CVE-2026-85893Use after free in Microsoft Edge (Chromium-based) allows an …8.8
- CVE-2026-8590Vulnerability in Spotfire Spotfire Enterprise (Spotfire Serv…8.7
- CVE-2026-85917Server-side request forgery (ssrf) in Azure AI Foundry allow…7.5
- CVE-2026-8592OS Command Injection vulnerability in the process_string act…9.8
- CVE-2026-85921Double free in Windows Secure Kernel Mode allows an authoriz…8.2
Are you affected by CVE-2026-8589?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST