CVE-2026-28268
Description
Vikunja is an open-source self-hosted task management platform. Versions prior to 2.1.0 have a business logic vulnerability exists in the password reset mechanism of vikunja/api that allows password reset tokens to be reused indefinitely. Due to a failure to invalidate tokens upon use and a critical logic bug in the token cleanup cron job, reset tokens remain valid forever. This allows an attacker who intercepts a single reset token (via logs, browser history, or phishing) to perform a complete, persistent account takeover at any point in the future, bypassing standard authentication controls. Version 2.1.0 contains a patch for the issue.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
code.vikunja.io/apiGo | <= 0.24.6 | — |
Affected products
5- ghsa-coords3 versionspkg:golang/code.vikunja.io/apipkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2016.0pkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6
<= 0.24.6+ 2 more
- (no CPE)range: <= 0.24.6
- (no CPE)range: < 0.0.20260723T184607-160000.1.1
- (no CPE)range: < 0.0.20260317T205859-150000.1.152.1
- Range: < 2.1.0
Patches
Vulnerability mechanics
References
5- github.com/go-vikunja/vikunja/commit/5c2195f9fca9ad208477e865e6009c37889f87b2nvdPatchWEB
- github.com/advisories/GHSA-rfjg-6m84-crj2ghsaADVISORY
- github.com/go-vikunja/vikunja/security/advisories/GHSA-rfjg-6m84-crj2nvdVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2026-28268ghsaADVISORY
- vikunja.io/changelog/vikunja-v2.1.0-was-releasednvdRelease NotesWEB
News mentions
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