Vulnerability · Published Mar 24, 2026 · Assigned by GitHub_M

CVE-2026-33316Vikunja’s Improper Access Control Enables Bypass of Administrator-Imposed Account Disablement

High 8.1

In plain English

A high-severity improper access control in vikunja from go-vikunja. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 32% of all known vulnerabilities).

Severity (CVSS 3.1)8.1High

Exploit odds (30 days)0.4%top 68.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

Vikunja is an open-source self-hosted task management platform. Prior to version 2.2.0, a flaw in Vikunja’s password reset logic allows disabled users to regain access to their accounts. The `ResetPassword()` function sets the user’s status to `StatusActive` after a successful password reset without verifying whether the account was previously disabled. By requesting a reset token through `/api/v1/user/password/token` and completing the reset via `/api/v1/user/password/reset`, a disabled user can reactivate their account and bypass administrator-imposed account disablement. Version 2.2.0 patches the issue.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Go	code.vikunja.io/api	no fix listed	GHSA-vq4q-79hh-q767
Go	code.vikunja.io/api	no fix listed	GO-2026-4798

Affected products (as reported)

Vendor	Product	Versions
go-vikunja	vikunja	< 2.2.0

Weakness: CWE-284, CWE-862, CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

https://github.com/go-vikunja/vikunja/security/advisories/GHSA-vq4q-79hh-q767 x_refsource_CONFIRM
https://github.com/go-vikunja/vikunja/commit/049f4a6be46f9460bd516f489ef9f569574bc70d x_refsource_MISC
https://github.com/go-vikunja/vikunja/commit/d8570c603da1f26635ce6048d6af85ede827abfb x_refsource_MISC
https://vikunja.io/changelog/vikunja-v2.2.0-was-released x_refsource_MISC