high7.5
CVE-2026-91972
Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token…
Impact
Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token routes. Remote unauthenticated attackers can perform unbounded credential guessing, account enumeration, and password-reset flooding attacks without throttling restrictions.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | code.vikunja.io/api | <= 2.5.0 | 2.6.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-6rvj-qwjf-3m4q
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-6rvj-qwjf-3m4q
- https://nvd.nist.gov/vuln/detail/CVE-2026-91972
- https://github.com/go-vikunja/vikunja/releases/tag/v2.6.0
- https://www.vulncheck.com/advisories/vikunja-before-2.6.0-authentication-bypass-via-unthrottled-api