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    CVE-2026-33679

    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 to the webhook system. Version 2.2.1 patches the issue.

    Published:Mar 24, 2026
    Last Modified:Mar 30, 2026
    EPS:Mar 24, 2026
    EPSS Score:0.00038
    CVSS Score:6.4

    Affected Products

    Vendor
    Go-vikunja
    Product
    Vikunja
    Vendor
    Vikunja
    Product
    Vikunja

    Exploits

    https://github.com/go-vikunja/vikunja/security/advisories/GHSA-g9xj-752q-xh63

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-664 Server Side Request Forgery

    Related CVEs

    CVE-2026-55067 (CVSS 5) — Vikunja is an open-source self-hosted task management platform. Prior to 2.4.0, POST /api/v1/projects/{project…
    CVE-2026-55066 (CVSS 7.1) — Vikunja is an open-source self-hosted task management platform. Prior to 2.4.0, POST /api/v1/projects/{project…
    CVE-2026-55065 (CVSS 8.1) — Vikunja is an open-source self-hosted task management platform. From 0.24.6 until 2.4.0, DELETE /api/v1/projec…
    CVE-2026-55064 (CVSS 4.3) — Vikunja is an open-source self-hosted task management platform. From 2.3.0 until 2.4.0, a user with Write but …
    CVE-2026-54766 (CVSS 5.3) — Vikunja is an open-source self-hosted task management platform. From 0.21.0 until 2.4.0, the project duplicati…
    CVE-2026-68581 (CVSS 8.6) — Vikunja versions 0.22.0 through 2.3.0 fail to validate the principal type in API token management. Because use…
    CVE-2026-40103 (CVSS 4.3) — Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, Vikunja's scoped API token enf…
    CVE-2026-35602 (CVSS 5.4) — Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the Vikunja file import endpoi…
    CVE-2026-35601 (CVSS 4.1) — Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the CalDAV output generator bu…
    CVE-2026-35600 (CVSS 5.4) — Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, task titles are embedded direc…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High