Detections
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Alpine: multiple libpng packages: security update to 1.6.58-r1

medium Tenable Cloud Security Plugin ID 442022

Description

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

 - LIBPNG is a reference library for use in applications that process PNG (Portable Network Graphics) raster
 image files. In version 1.8.0, three inter-frame chunk discard paths in the push-mode APNG parser clear
 the chunk-header flag without consuming the chunk body and CRC, allowing attacker-controlled bytes inside
 an ignored ancillary chunk to be reinterpreted as a fresh chunk header on the next call to
 `png_process_data`. Commit faf06924688b62d7c1654b5ceddedbde66ffadb4 fixes the issue. (CVE-2026-40930)

Solution

Update the libpng library and its related packages to version 1.6.58-r1 or later.

See Also

https://security.alpinelinux.org/vuln/CVE-2026-40930

Plugin Details

Severity: Medium

ID: 442022

Version: Revision 1.8

Type: Local

Published: 5/18/2026

Updated: 8/21/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.1

Percentile: 53.47

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2026-40930

CVSS v3

Risk Factor: Medium

Base Score: 5.4

Temporal Score: 4.7

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Reference Information

CVE: CVE-2026-40930