Detections
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SCA: security update for code.vikunja.io/api (GHSA-9rg3-v78m-26q8)

medium Tenable Self-Hosted Container Security Plugin ID 474050

Description

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

 - Vikunja before 2.6.0 contains an API token scope bypass vulnerability in task read endpoints where
 authorization fails to inspect query string parameters. Attackers with limited token scopes can use the
 expand parameter to access restricted data like comments, reactions, and time entries without proper
 permission verification. (CVE-2026-91983)

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-9rg3-v78m-26q8

Plugin Details

Severity: Medium

ID: 474050

Version: Revision 1.1

Type: Local

Family: SCA Checks

Published: 10/10/2026

Updated: 10/10/2026

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2026-91983

CVSS v3

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.8

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

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

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/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-2026-91983

cwe: CWE-863