Vikunja: CalDAV and feeds BasicAuth endpoints have no rate limit, bypassing the anti-brute-force floor on account passwords in code.vikunja.io/api
Vikunja: CalDAV and feeds BasicAuth endpoints have no rate limit, bypassing the anti-brute-force floor on account passwords in code.vikunja.io/api. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: code.vikunja.io/api before v2.6.0.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-91973US | high7.5 | — | ||
Vikunja before 2.6.0 contains an authentication bypass vulnerability in CalDAV BasicAuth endpoints that lack rate limiting protection. Remote unauthenticated attackers can issue un… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/go-vikunja/vikunja/pull/3688WEB
- https://github.com/go-vikunja/vikunja/releases/tag/v2.6.0WEB
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-m469-88xx-8rx2ADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-91973ADVISORY
- https://www.vulncheck.com/advisories/vikunja-before-2.6.0-authentication-bypass-via-caldav-basicauthWEB
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