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CVE-2026-35602
5.4 MEDIUM
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): Low (L)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): None (N)
- Integrity (I): Low (L)
- Availability (A): Low (L)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): Low (L)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): None (N)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): Low (L)
- Modified Availability (MA): Low (L)
Activity log
- Created suggestion
Vikunja has a File Size Limit Bypass via Vikunja Import
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.
References
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https://github.com/go-vikunja/vikunja/security/advisories/GHSA-qh78-rvg3-cv54 x_refsource_CONFIRM
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https://github.com/go-vikunja/vikunja/pull/2575 x_refsource_MISC
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https://github.com/go-vikunja/vikunja/releases/tag/v2.3.0 x_refsource_MISC
Affected products
vikunja
- ==< 2.3.0
Package maintainers
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@adamcstephens Adam C. Stephens <happy.plan4249@valkor.net>
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@leona-ya Leona Maroni <nix@leona.is>