PT-2026-42116 · Unknown+2 · Libpng-Apng+2

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CVE-2026-40930

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Published

2026-05-16

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Updated

2026-08-23

CVSS v3.1

5.4

Medium

VectorAV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Name of the Vulnerable Software and Affected Versions libpng-apng (affected versions not specified)
Description An issue exists in the push-mode APNG parser where chunk smuggling is possible via an unconsumed chunk body. This occurs within the third-party libpng-apng patch.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Weakness Enumeration

Related Identifiers

AZL-89501
AZL-89504
AZL-89507
AZL-89513
AZL-89516
CVE-2026-40930
GHSA-C4V6-GXRQ-6G2X
OESA-2026-2533
OESA-2026-2534
OESA-2026-2535
USN-8639-1

Affected Products

Linuxmint
Ubuntu
Libpng-Apng