Alpine: multiple libpng packages: security update to 1.6.54-r0

high Tenable Cloud Security Plugin ID 436903

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

- LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable
Network Graphics) raster image files. From 1.6.51 to 1.6.53, there is a heap buffer over-read in the
libpng simplified API function png_image_finish_read when processing interlaced 16-bit PNGs with 8-bit
output format and non-minimal row stride. This is a regression introduced by the fix for CVE-2025-65018.
This vulnerability is fixed in 1.6.54. (CVE-2026-22695)

- LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable
Network Graphics) raster image files. From 1.6.26 to 1.6.53, there is an integer truncation in the libpng
simplified write API functions png_write_image_16bit and png_write_image_8bit causes heap buffer over-read
when the caller provides a negative row stride (for bottom-up image layouts) or a stride exceeding 65535
bytes. The bug was introduced in libpng 1.6.26 (October 2016) by casts added to silence compiler warnings
on 16-bit systems. This vulnerability is fixed in 1.6.54. (CVE-2026-22801)

See Also

https://security.alpinelinux.org/vuln/CVE-2026-22695

https://security.alpinelinux.org/vuln/CVE-2026-22801

Plugin Details

Severity: High

ID: 436903

Version: Revision 1.6

Type: Local

Published: 1/23/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.95

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-22801

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 1/12/2026

Reference Information

CVE: CVE-2026-22695, CVE-2026-22801

IAVA: 2026-A-0030