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SCA: security update for github.com/chainguard-dev/malcontent (GHSA-945p-3jhm-6rcp)

medium Tenable Self-Hosted Container Security Plugin ID 438161

Description

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

 - malcontent is software for discovering supply-chain compromises through context, differential analysis,
 and YARA. Prior to version 1.21.0, malcontent would remove nested archives which failed to extract which
 could potentially leave malicious content. A better approach is to preserve these archives so that
 malcontent can attempt a best-effort scan of the archive bytes. Version 1.21.0 fixes the issue.
 (CVE-2026-28407)

See Also

https://github.com/advisories/GHSA-945p-3jhm-6rcp

Plugin Details

Severity: Medium

ID: 438161

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 3/4/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-28407

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.9

Threat Score: 2.7

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 2/28/2026

Vulnerability Publication Date: 2/27/2026

Reference Information

CVE: CVE-2026-28407

cwe: CWE-703