high7.1
CVE-2026-91979
Vikunja before 2.6.0 fails to limit archive expansion during data import, allowing authenticated users to cause denial of service.
Impact
Vikunja before 2.6.0 fails to limit archive expansion during data import, allowing authenticated users to cause denial of service. Attackers can upload highly compressed files that expand to tens of gigabytes in memory and disk, exhausting server resources and crashing the instance.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | code.vikunja.io/api | <= 2.5.0 | 2.6.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-w7jp-mf2v-8342
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-w7jp-mf2v-8342
- https://nvd.nist.gov/vuln/detail/CVE-2026-91979
- https://github.com/go-vikunja/vikunja/pull/3688
- https://github.com/go-vikunja/vikunja/releases/tag/v2.6.0
- https://www.vulncheck.com/advisories/vikunja-before-2.6.0-denial-of-service-via-decompression-bomb