Detections
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SCA: security update for code.vikunja.io/api (GHSA-4vh2-39rq-rq8j)

high Tenable Self-Hosted Container Security Plugin ID 474051

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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 excessive pixel counts. Attackers can
 upload small images with extreme aspect ratios that consume significant CPU and memory during processing,
 causing denial of service through repeated or concurrent uploads. (CVE-2026-91971)

Solution

Update the code.vikunja.io/api library and its related packages to version 2.6.0 or later.

See Also

https://github.com/advisories/GHSA-4vh2-39rq-rq8j

Plugin Details

Severity: High

ID: 474051

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/10/2026

Updated: 10/10/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.61

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C

CVSS Score Source: CVE-2026-91971

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 7.1

Threat Score: 4.9

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 10/9/2026

Vulnerability Publication Date: 9/15/2026

Reference Information

CVE: CVE-2026-91971

cwe: CWE-400