PT-2026-27452 · Vikunja · Vikunja

Restriction · Published 2026-03-24 · Updated 2026-03-27 · CVE-2026-33679

Positive Technologies (AI Summary)

CVSS v3.1

7.4

High

Base vector

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

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

Description Vikunja is a self-hosted task management platform. A flaw exists in the DownloadImage function within pkg/utils/avatar.go where insufficient Server-Side Request Forgery (SSRF) protection is applied when downloading user avatar images from the OpenID Connect picture claim URL. This allows an attacker controlling their OpenID Connect profile picture URL to potentially force the Vikunja server to make HTTP GET requests to arbitrary internal or cloud metadata endpoints, bypassing existing SSRF protections applied to the webhook system.

Recommendations Update to version 2.2.1 or later.

Exploit

Fix

SSRF

Weakness Enumeration

CWE-918

Related Identifiers

CVE-2026-33679

GHSA-G9XJ-752Q-XH63

GO-2026-4852

SUSE-SU-2026:1135-1

Affected Products

Vikunja

References · 152

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33679.json · Exploit
• https://github.com/go-vikunja/vikunja/commit/363aa6642352b08fc8bc6aaff2f3a550393af1cf · Patch
• https://github.com/go-vikunja/vikunja/security/advisories/GHSA-g9xj-752q-xh63 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:1135-1 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-g9xj-752q-xh63 · Vendor Advisory
• https://osv.dev/vulnerability/GO-2026-4852 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-33679 · Security Note
• https://osv.dev/vulnerability/CVE-2026-33679 · Vendor Advisory
• https://github.com/go-vikunja/vikunja · Note
• https://suse.com/security/cve/CVE-2026-33353 · Note
• https://suse.com/security/cve/CVE-2026-32815 · Note
• https://suse.com/security/cve/CVE-2026-32769 · Note
• https://suse.com/security/cve/CVE-2026-33668 · Note
• https://suse.com/security/cve/CVE-2026-24692 · Note
• https://suse.com/security/cve/CVE-2026-2455 · Note