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Advisory record · GHSA-hjx8-qv73-f7cm

Vikunja: Webhooks and link shares survive every revocation path, so a removed collaborator keeps a live feed

CVSS 7.1 HighEPSS 0.0036 · 29th percentile

Published by the GitHub Advisory Database at 9 Oct 2026, 20:57 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
code.vikunja.io/apiGo>=0.22.0, <=2.6.0No fixed version yet
Identifiers
GHSA-hjx8-qv73-f7cm · CVE-2026-111919 · GO-2026-6733
Weakness (CWE)
CWE-613 · CWE-863
Tags
Published
9 Oct 2026
Updated
19 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Vikunja (code.vikunja.io/api) versions 0.22.0 through 2.6.0 keep project webhooks and link shares after a collaborator's access is removed. The former collaborator can keep receiving task contents and use the link share. No fixed version is listed; owners can delete webhooks and link shares created by removed users.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.1 High 4.0 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 CNA (VulnCheck)
  • CISA KEV Not listed.
  • EPSS 0.0036, the 29th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:11 UTC First seen by agentprime
  2. 31 Oct 2026, 14:11 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.