PT-2026-27450 · Vikunja · Vikunja

Restriction · Published 2026-03-24 · Updated 2026-03-27 · CVE-2026-33677

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Vikunja versions prior to 2.2.1

Description Vikunja is a self-hosted task management platform. The GET /api/v1/projects/:project/webhooks API endpoint exposes BasicAuth credentials (basic auth user and basic auth password) in plaintext to users with read access to the project. The HMAC secret field is masked, but the BasicAuth fields were not, allowing read-only collaborators to potentially steal credentials used for authenticating external webhook receivers.

Recommendations Update to version 2.2.1 or later.

Exploit

Fix

Information Disclosure

Weakness Enumeration

CWE-200

Related Identifiers

CVE-2026-33677

GHSA-7C2G-P23P-4JG3

GO-2026-4846

SUSE-SU-2026:1135-1

Affected Products

Vikunja

References · 150

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33677.json · Exploit
• https://github.com/go-vikunja/vikunja/security/advisories/GHSA-7c2g-p23p-4jg3 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-7c2g-p23p-4jg3 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33677 · Security Note
• https://osv.dev/vulnerability/CVE-2026-33677 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2026-4846 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:1135-1 · Vendor Advisory
• https://github.com/go-vikunja/vikunja · Note
• https://suse.com/security/cve/CVE-2026-33217 · Note
• https://suse.com/security/cve/CVE-2026-33216 · Note
• https://suse.com/security/cve/CVE-2026-32768 · Note
• https://suse.com/security/cve/CVE-2026-32747 · Note
• https://suse.com/security/cve/CVE-2026-2463 · Note
• https://suse.com/security/cve/CVE-2026-30886 · Note
• https://suse.com/security/cve/CVE-2026-33219 · Note