VulnerabilityPublished 20 Apr 2026Updated 30 Apr 2026

CVE-2026-23868: giflib security update

Affects giflibSource GCVE Database

Not known to be exploited : upgrade to 5.1.4-4.el8_10 soon.

Data as of 27 Oct 2026, 00:16 UTC

Severity

High

Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Patch: Available – fixed in 5.1.4-4.el8_10

Exploitation evidence

Disclosed: evidence found.
CVE published 20 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

almalinux-8

What to do

Upgrade the AlmaLinux to 5.1.4-4.el8_10.

Patches and advisories

access.redhat.com/errata/RHSA-2026:8861 (opens in a new tab)

Affected software

Product	Affected	Fixed in
AlmaLinux 8giflib	Affected <5.1.4-4.el8_10	Fixed in 5.1.4-4.el8_10
AlmaLinux 8giflib-devel	Affected <5.1.4-4.el8_10	Fixed in 5.1.4-4.el8_10

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Apply the official security update provided by Red Hat that upgrades giflib to version 5.1.4-4.el8_10 or later. This update fixes the double-free vulnerability and mitigates the risk of memory corruption. No additional actions are required beyond applying the vendor's patch.

Description

A double-free vulnerability in giflib, a library for reading and writing GIF images, can lead to memory corruption. This issue is identified as CVE-2026-23868. The vulnerability affects versions prior to 5.1.4-4.el8_10. Red Hat has released an important security update addressing this flaw.

Impact

The vulnerability can lead to memory corruption due to a double-free condition in giflib. This could potentially be exploited to cause application crashes or other unintended behavior in software that uses the affected giflib versions. No active exploitation has been reported.

Summary

CVE-2026-23868 is a double-free vulnerability in giflib that can cause memory corruption. The flaw exists in giflib versions before 5.1.4-4.el8_10. Red Hat's advisory confirms the issue and provides updated packages that fix the vulnerability. The update is rated as important by Red Hat Product Security. No known exploits in the wild have been reported.

References

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