GHSA-p2vv-wrh8-x466

Suggest an improvement
Source
https://github.com/advisories/GHSA-p2vv-wrh8-x466
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-p2vv-wrh8-x466/GHSA-p2vv-wrh8-x466.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-p2vv-wrh8-x466
Withdrawn
2026-10-09T20:51:57Z
Published
2026-09-15T18:32:30Z
Modified
2026-10-09T21:00:06Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/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 CVSS Calculator
Summary
Duplicate Advisory: Vikunja: CalDAV and feeds BasicAuth endpoints have no rate limit, bypassing the anti-brute-force floor on account passwords
Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-m469-88xx-8rx2. This link is maintained to preserve external references.

Original Description

Vikunja before 2.6.0 contains an authentication bypass vulnerability in CalDAV BasicAuth endpoints that lack rate limiting protection. Remote unauthenticated attackers can issue unbounded credential-guessing requests against /dav, /.well-known, and /feeds routes to bypass the instance's anti-brute-force controls and compromise password-only accounts.

Database specific
{
    "cwe_ids":  [
        "CWE-307"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-10-09T20:51:57Z",
    "nvd_published_at":  "2026-09-15T16:17:54Z",
    "severity":  "HIGH"
}
References

Affected packages

Go / code.vikunja.io/api

Package

Name
code.vikunja.io/api
View open source insights on deps.dev
Purl
pkg:golang/code.vikunja.io/api

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
2.5.0

Database specific

source
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-p2vv-wrh8-x466/GHSA-p2vv-wrh8-x466.json"