CVE-2026-33679 — Server-Side Request Forgery in Vikunja
Severity
7.4HIGHNVD
EPSS
0.0%
top 88.13%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedMar 24
Latest updateMar 26
Description
Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.1, the `DownloadImage` function in `pkg/utils/avatar.go` uses a bare `http.Client{}` with no SSRF protection when downloading user avatar images from the OpenID Connect `picture` claim URL. An attacker who controls their OIDC profile picture URL can force the Vikunja server to make HTTP GET requests to arbitrary internal or cloud metadata endpoints. This bypasses the SSRF protections that are correctly applied t…
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:LExploitability: 3.1 | Impact: 3.7
Affected Packages3 packages
Patches
🔴Vulnerability Details
3OSV▶
Vikjuna Bypasses Webhook SSRF Protections During OpenID Connect Avatar Download in code.vikunja.io/api↗2026-03-26