CVE-2026-22603 (GCVE-0-2026-22603)
Vulnerability from cvelistv5 – Published: 2026-01-10 01:06 – Updated: 2026-01-13 19:59
VLAI
EPSS
VEX
Title
OpenProject has no protection against brute-force attacks in the Change Password function
Summary
OpenProject is an open-source, web-based project management software. Prior to version 16.6.2, OpenProject’s unauthenticated password-change endpoint (/account/change_password) was not protected by the same brute-force safeguards that apply to the normal login form. In affected versions, an attacker who can guess or enumerate user IDs can send unlimited password-change requests for a given account without triggering lockout or other rate-limiting controls. This allows automated password-guessing (e.g., with wordlists of common passwords) against valid accounts. Successful guessing results in full account compromise for the targeted user and, depending on that user’s role, can lead to further privilege escalation inside the application. This issue has been patched in version 16.6.2. Those who are unable to upgrade may apply the patch manually.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-13 19:59 UTC
CWE
- CWE-307 - Improper Restriction of Excessive Authentication Attempts
Assigner
GitHub_M
CNA
References
4 references
| URL | Tags |
|---|---|
| https://github.com/opf/openproject/security/advis… | x_refsource_CONFIRM |
| https://github.com/opf/openproject/pull/21272 | x_refsource_MISC |
| https://github.com/opf/openproject/commit/2b394b9… | x_refsource_MISC |
| https://github.com/opf/openproject/releases/tag/v16.6.2 | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| opf | openproject |
Affected:
< 16.6.2
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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