Vikunja: Unbounded image decode on avatar and project-background uploads enables decode/resize amplification in code.vikunja.io/api
Vikunja: Unbounded image decode on avatar and project-background uploads enables decode/resize amplification in code.vikunja.io/api. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: code.vikunja.io/api before v2.6.0.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-91971US | medium6.5 | — | ||
Vikunja before 2.6.0 fails to apply pixel decode limits to avatar and project-background upload endpoints, allowing authenticated users to upload crafted images that decode to exce… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/go-vikunja/vikunja/pull/3688WEB
- https://github.com/go-vikunja/vikunja/releases/tag/v2.6.0WEB
- https://github.com/go-vikunja/vikunja/security/advisories/GHSA-4vh2-39rq-rq8jADVISORY
- https://nvd.nist.gov/vuln/detail/CVE-2026-91971ADVISORY
- https://www.vulncheck.com/advisories/vikunja-before-2.6.0-denial-of-service-via-avatar-uploadWEB
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