Affected: AlmaLinux:9: giflib, AlmaLinux:9: giflib-devel

giflib is a library for reading and writing gif images.

Security Fix(es):

* giflib: giflib: Denial of Service via buffer overflow in EGifGCBToExtension (CVE-2026-26740)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected: Alpaquita:25: giflib, Alpaquita:stream: giflib

Withdrawn by the publisher.

Affected: CleanStart: apache-nifi

Multiple security vulnerabilities affect the apache-nifi package. yawkat LZ4 Java provides LZ4 compression for Java. See references for individual vulnerability details.

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.

Affected: openEuler:24.03-LTS-SP3: giflib

giflib is a library of gif images and provides utilities for processing images. Security Fix(es):

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.(CVE-2026-26740)

giflib-devel-32bit-5.2.2-4.1 on GA media

giflib: giflib: Denial of Service via buffer overflow in EGifGCBToExtension

Affected: Rocky Linux:9: giflib

giflib is a library for reading and writing gif images.

Security Fix(es):

* giflib: giflib: Denial of Service via buffer overflow in EGifGCBToExtension (CVE-2026-26740)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Security update for giflib

Affected: Ubuntu:Pro:16.04:LTS: giflib, Ubuntu:Pro:18.04:LTS: giflib, Ubuntu:20.04:LTS: giflib, Ubuntu:22.04:LTS: giflib, Ubuntu:24.04:LTS: giflib, Ubuntu:25.10: giflib, Ubuntu:26.04:LTS: giflib

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size.

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.