CVE-2026-91968 vikunja before 2.6.0 Denial of Service via unbounded filter recursion
HighCVSS 7.1
EPSS 0.44%
- Published
- Updated
- Exploit status
- No public exploit known
Description
vikunja versions before 2.6.0 contain a resource exhaustion vulnerability in the task-filter endpoint that accepts deeply nested filter expressions without recursion depth limits. Authenticated attackers can supply thousands of nested parentheses in the filter query parameter to exhaust memory and terminate the API process.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| code.vikunja.io/api(Go) | >= 2.5.0, < 2.6.0 | 2.6.0 |
| code.vikunja.io/api(Go) | = 2.5.0 | No fix listed |
| code.vikunja.io/api(Go) | All versions | No fix listed |
| code.vikunja.io/api | >= 2.5.0, < 2.6.0 | 2.6.0 |
References
- GitHub Security Advisory (GHSA-xxc3-xpmc-vmvr) exploit vendor-advisory
- nvd.nist.gov third-party-advisory vendor-advisory
- github.com patch
- github.com product
- github.com
- VulnCheck Advisory: vikunja before 2.6.0 Denial of Service via unbounded filter recursion third-party-advisory
- github.com