A AegiFlow
HIGHCVSS 8.7

GHSA-37rx-7pj5-p885

Duplicate Advisory: Vikunja: Read-only project members can obtain any link share's access hash via the single-share read endpoint (v1 and v2) and escalate to the share's permission level

Published
2026-09-15
Modified
2026-10-09
Sources
github-advisory

Summary

### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-qfwc-vx6f-3g6g. This link is maintained to preserve external references. ### Original Description Vikunja before 2.6.0 fails to properly restrict access to the link-share hash field in single-share read endpoints, allowing read-only members to obtain the share's secret credential. Attackers can exchange the disclosed hash for a link-share JWT at the share's permission level to escalate privileges and perform unauthorized writes or administrative actions.

Affected packages

EcosystemPackageAffected versionsFixed versions
Gocode.vikunja.io/api——

Remediation: No patched version is listed by GitHub.

References

Includes data from the GitHub Advisory Database, licensed under CC-BY 4.0.