Medium [CVE-2026-40915] Gimp: gimp: heap buffer overflow due to integer overflow in fits image loader
This medium-severity Red Hat Linux advisory covers CVE-2026-40915 affecting Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published
Summary
A flaw was found in GIMP. A remote attacker could exploit an integer overflow vulnerability in the FITS image loader by providing a specially crafted FITS file.
This integer overflow leads to a zero-byte memory allocation, which is then subjected to a heap buffer overflow when processing pixel data. Successful exploitation could result in a denial of service (DoS) or potentially arbitrary code execution.
Moderate. This flaw in GIMP's FITS image loader could lead to a denial of service or arbitrary code execution when processing a specially crafted FITS file.
Exploitation requires user interaction, as a malicious file must be opened by the application. Red Hat Enterprise Linux systems are affected if GIMP is installed and used to open untrusted FITS image files.
Weakness: CWE-190. Red Hat does not currently list a fixing RHSA for this CVE.
Affected products named by the advisory: Red Hat Enterprise Linux 6; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 9; and 1 more.
Affected products named by the advisory: Red Hat package: gimp.
Is CVE-2026-40915 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-40915 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-40915?
The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.
Confirm against the vendor advisory before you patch.
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 4 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 4 days ago·verify at source
Mitigation checklist
- Users should avoid opening untrusted FITS image files with GIMP. If GIMP is not required, consider removing the `gimp` package to eliminate the attack surface. This can be done using the system's package manager, for example: `sudo dnf remove gimp`. Removing GIMP may impact other applications that depend on it.
Official advisory · high-confidence parse· fetched 4 days ago·verify at source
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