High severity7.5NVD Advisory· Published Sep 15, 2026· Updated Sep 17, 2026
CVE-2026-91972
CVE-2026-91972
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
code.vikunja.io/apiGo | < 2.6.0 | 2.6.0 |
Affected products
2- Range: <2.6.0
Patches
Vulnerability mechanics
References
5- github.com/advisories/GHSA-6rvj-qwjf-3m4qghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-91972ghsaADVISORY
- github.com/go-vikunja/vikunja/releases/tag/v2.6.0ghsaWEB
- github.com/go-vikunja/vikunja/security/advisories/GHSA-6rvj-qwjf-3m4qnvdWEB
- www.vulncheck.com/advisories/vikunja-before-2.6.0-authentication-bypass-via-unthrottled-apinvdWEB
News mentions
1- Go Vikunja: Twelve Vulnerabilities Including Privilege Escalation and Auth Bypass Disclosed TogetherVypr Intelligence · Sep 15, 2026