Improper Access Control in Vikunja by Vikunja Team
CVE-2026-111919

7.1HIGH

Key Information:

Vendor

Go-vikunja

Status
Vikunja
Vendor
CVE Published:
17 October 2026

What is CVE-2026-111919?

The Vikunja platform prior to version 2.7.0 exhibits an improper access revocation issue. Removed collaborators can retain access to project data through webhooks they originally set up. This vulnerability enables former collaborators to continue receiving updates, including task titles and descriptions, even after their permissions have been revoked. This lack of access enforcement poses significant risks, as sensitive information may be inadvertently exposed, underscoring the importance of prompt updates to secure versions.

Affected Version(s)

vikunja 0.22.0 < 2.7.0

vikunja 2.7.0

References

https://github.com/go-vikunja/vikunja/security/advisories...
vendor-advisory
https://www.vulncheck.com/advisories/vikunja-0.22.0-befor...
third-party-advisory

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

euriconicacio
Tan-JunWei
.