Medium severity5.4NVD Advisory· Published Apr 10, 2026· Updated Apr 17, 2026
CVE-2026-35602
CVE-2026-35602
Description
Vikunja is an open-source self-hosted task management platform. Prior to 2.3.0, the Vikunja file import endpoint uses the attacker-controlled Size field from the JSON metadata inside the import zip instead of the actual decompressed file content length for the file size enforcement check. By setting Size to 0 in the JSON while including large compressed file entries in the zip, an attacker bypasses the configured maximum file size limit. This vulnerability is fixed in 2.3.0.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
code.vikunja.io/apiGo | < 2.3.0 | 2.3.0 |
Affected products
2Patches
Vulnerability mechanics
References
5- github.com/go-vikunja/vikunja/security/advisories/GHSA-qh78-rvg3-cv54nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-qh78-rvg3-cv54ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-35602ghsaADVISORY
- github.com/go-vikunja/vikunja/pull/2575nvdIssue TrackingWEB
- github.com/go-vikunja/vikunja/releases/tag/v2.3.0nvdRelease NotesWEB
News mentions
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