CVE-2026-22604
Last modified
CVE-2026-22604 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. OpenProject is an open-source, web-based project management software. For OpenProject versions from 11.2.1 to before 16.6.2, when sending a POST request to the /account/change_password endpoint with an arbitrary User ID as the password_change_user_id parameter, the resulting error page would show the username for the requested user. EPSS estimates a 0.25% chance of exploitation in the next 30 days.
Description
OpenProject is an open-source, web-based project management software. For OpenProject versions from 11.2.1 to before 16.6.2, when sending a POST request to the /account/change_password endpoint with an arbitrary User ID as the password_change_user_id parameter, the resulting error page would show the username for the requested user. Since this endpoint is intended to be called without being authenticated, this allows to enumerate the user names of all accounts registered in an OpenProject instance. This issue has been patched in version 16.6.2.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Openproject | Openproject | >= 11.2.1, < 16.6.2 |
References
- https://github.com/opf/openproject/pull/3451Issue Tracking
- https://github.com/opf/openproject/security/advisories/GHSA-q7qp-p3vw-j2fhPatch, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-22604?
How severe is CVE-2026-22604?
How do I fix CVE-2026-22604?
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-2026-22599Strapi is an open source headless content management system.…7.2
- CVE-2026-2260A vulnerability was found in D-Link DCS-931L up to 1.13.0. T…7.3
- CVE-2026-22600OpenProject is an open-source, web-based project management …9.1
- CVE-2026-22601OpenProject is an open-source, web-based project management …7.2
- CVE-2026-22602OpenProject is an open-source, web-based project management …3.5
- CVE-2026-22603OpenProject is an open-source, web-based project management …6.5
- CVE-2026-22605OpenProject is an open-source, web-based project management …4.3
- CVE-2026-22606Fickling is a Python pickling decompiler and static analyzer…7.8
- CVE-2026-22607Fickling is a Python pickling decompiler and static analyzer…7.8
- CVE-2026-22608Fickling is a Python pickling decompiler and static analyzer…7.8
- CVE-2026-22609Fickling is a Python pickling decompiler and static analyzer…7.8
- CVE-2026-2261Due to a programming error, blocklistd leaks a socket descri…7.5
Are you affected by CVE-2026-22604?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST