CVE-2026-103641
gegl: gegl04: gegl: out-of-bounds read in the Radiance HDR uncompressed scanline decoder
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 1, 2026
Updated · October 1, 2026
Description
A flaw was found in GEGL. The Radiance HDR loader reads past the end of a memory-mapped image when an uncompressed scanline is shorter than the width declared in the file header. Opening a crafted HDR file crashes the application that uses the loader.
Statement
This vulnerability is rated as having Moderate impact by Red Hat because successful exploitation requires local user interaction to open a specially crafted graphic file and primarily results in application termination. In standard Red Hat Enterprise Linux environments, GEGL serves as a non-daemon graphics processing library invoked by client-side applications rather than exposed network services. Because the out-of-bounds read condition triggers a segmentation fault without allowing arbitrary code execution or unauthorized data modification, the blast radius is restricted to the invoking process.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
Do not open untrusted Radiance HDR files (.hdr, .pic) in applications that load them through GEGL.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-125 · Out-of-bounds Read