CVE-2026-9672VulnerabilityPublished 12 Oct 2026Updated 3 Nov 2026

Red Hat Security Advisory: gd security update

Affects Red Hat gdSource GCVE Database

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Not known to be exploited.

Data as of 3 Nov 2026, 05:31 UTC

Severity

High

Rated by Threat Radar · CVSS not yet scored by NVD

Exploitation evidence

Disclosed: evidence found.
CVE published 12 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 2 Nov 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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.

What to do

AI-suggested

Red Hat has released a security update for the gd package (version 2.3.3-20.el10_0.1) that fixes this buffer overflow vulnerability. Users of affected Red Hat Enterprise Linux 10.0 Extended Update Support versions should apply this update promptly. Refer to Red Hat's official advisory and update instructions at https://access.redhat.com/articles/11258 for detailed remediation steps.

Description

A buffer overflow vulnerability (CVE-2026-9672) exists in the libgd component of the GD library when processing specially crafted GIF files. GD is an open source library used for dynamic image creation supporting multiple formats including PNG, JPEG, GIF, and others. Red Hat has issued a security advisory for this flaw affecting Red Hat Enterprise Linux 10.0 Extended Update Support and related variants. The vulnerability is rated as having an Important security impact by Red Hat. A security update is available to address this issue.

Impact

The vulnerability allows a buffer overflow when processing malicious GIF files, which could lead to memory corruption. The exact impact is not detailed in the input data, but buffer overflows typically risk application crashes or potential code execution. Red Hat rates the security impact as Important. There is no indication of known exploitation in the wild at this time.

Summary

CVE-2026-9672 is a buffer overflow vulnerability in the libgd library, part of the GD image processing library, triggered by processing specially crafted GIF files. This flaw could potentially lead to memory corruption. Red Hat has released an update for Red Hat Enterprise Linux 10.0 Extended Update Support and related architectures to fix this issue. The advisory classifies the impact as Important, but no CVSS score is provided in the input data. The update is available in gd version 2.3.3-20.el10_0.1 for multiple architectures including x86_64, s390x, ppc64le, and aarch64.

CWE-120Buffer Copy without Checking Size of Input (Classic Buffer Overflow) (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #11
The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
Requirements · Language Selection
Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Architecture and Design · Libraries or Frameworks
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
Operation · Build and Compilation · Environment Hardening
Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index…
OWASP Cheat Sheets
Docker Security (opens in a new tab)
XML Security (opens in a new tab)
OWASP ASVS 4.0.3
V5.4.1 (opens in a new tab)
V14.1.2 (opens in a new tab)
V13.3.1 (opens in a new tab)
Attack patterns
Buffer Overflow via Environment Variables (opens in a new tab)
Overflow Buffers (opens in a new tab)
Client-side Injection-induced Buffer Overflow (opens in a new tab)
Filter Failure through Buffer Overflow (opens in a new tab)
MIME Conversion (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

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Exploitation evidence

What to do

Description

AI analysisMachine-generated, updated 3 Nov 2026, 05:31 UTC

WeaknessesCWE-120

Technical details

References

Community reviews

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