# CVE-2026-103641: Gegl: gegl04: gegl: out-of-bounds read in the radiance hdr uncompressed scanline decoder

Status: published. Published: 2026-10-01. Updated: 2026-11-05.

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.

## Remediation

- workaround: Do not open untrusted Radiance HDR files (.hdr, .pic) in applications that load them through GEGL. (source: CNA: redhat)

## Affected products and versions

- Red Hat / Red Hat Enterprise Linux 10 (gegl04): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 6 (gegl): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 7 (gegl): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gegl): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 8 (gegl04): Version range not reported. Source: CNA: redhat
- Red Hat / Red Hat Enterprise Linux 9 (gegl04): Version range not reported. Source: CNA: redhat

## Severity and prioritization

- CVSS 3.1: 5.5 (medium); CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H; source: CNA: redhat

- CVSS 3.1: 5.5 (medium); CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H; source: NVD: secalert@redhat.com

- CISA KEV: No listing in collected sources

- EPSS: 0.14% as of 2026-11-05; percentile 3.70%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-125

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://access.redhat.com/security/cve/CVE-2026-103641 (CNA: redhat; vdb-entry, x_refsource_REDHAT)

- https://bugzilla.redhat.com/show_bug.cgi?id=2544420 (CNA: redhat; issue-tracking, x_refsource_REDHAT)

- https://access.redhat.com/security/cve/CVE-2026-103641 (secalert@redhat.com)

- https://bugzilla.redhat.com/show_bug.cgi?id=2544420 (secalert@redhat.com)

## Provenance

- CNA: redhat: https://www.cve.org/CVERecord?id=CVE-2026-103641; retrieved 2026-11-05; source updated 2026-11-05

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-103641; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-103641; retrieved 2026-11-05; source updated Not reported

Revision: 2de5007eb015c60fad11a277b955a920dee6a8044840188c6c78b103b9bbd0b5

Canonical: https://y2.dev/cve/CVE-2026-103641

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