Advisory severityMedium6.1Red Hat Linux

Medium [CVE-2026-78475] Gimp: unbounded stack vla and 21-byte stack over-read in pix (esm) loader

This medium-severity Red Hat Linux advisory covers CVE-2026-78475 affecting Red Hat Enterprise Linux 9, Red Hat package: gimp.

Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.

CVE-2026-78475 Source published Aug 24, 2026Source updated Jul 24, 2026

VulniPulse record published Aug 25, 2026

CVE-2026-78475

Affected products & platforms

Red Hat LinuxRed Hat Enterprise Linux

Open source advisory

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Summary

A flaw was found in the file-pix (ESM) plugin in GIMP. When processing a specially crafted PIX image file, the plugin allocates a Variable-Length Array (VLA) on the stack without proper bounds checking, causing an unbounded stack allocation followed by a 21-byte stack over-read.

This can result in a denial of service due to stack exhaustion and a limited information disclosure of stack memory contents into an intermediate file. To exploit this vulnerability, an attacker needs to convince a user to process a specially crafted PIX image with GIMP, reducing the likelihood of exploitation.

Due to this reason, this flaw has been rated with a moderate severity. Red Hat severity: Moderate — CVSS 6.1 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H).

Weakness: CWE-125. Affected Red Hat products: Red Hat Enterprise Linux 9.

Red Hat does not currently list a fixing RHSA for this CVE.

Affected products named by the advisory: Red Hat package: gimp.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Fixed versions

No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Mitigation checklist

Recommended fix / mitigation

To mitigate this vulnerability, do not open PIX files from untrusted sources with GIMP.

Official advisory · high-confidence parse· fetched 12 days ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Red Hat Security Data APIofficial
Official vendor source used to discover this advisory; it remains the authority for affected products and remediation. Discovered from the machine-readable feed https://access.redhat.com/hydra/rest/securitydata/cve.json; this link opens the Red Hat Linux advisory index instead of the raw feed document.
Red Hat Linux
Official vendor advisoryofficial
Official advisory page fetched and parsed; accepted detail fields are attributed to this page.
Red Hat Linux
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-78475NVD CVE.org MITRE

Discussion(0)

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