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VulnerabilityPublished Updated

CVE-2026-103641: Red Hat Enterprise Linux 10 · Out-of-bounds Read

Affects Red Hat Enterprise Linux 10Source CVE Database V5

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Not known to be exploited · CVSS 5.5 Medium.

Data as of 14 Nov 2026, 20:43 UTC

CVSS 3.1 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (redhat)CVSS 3.15.5
EPSS
0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 14 Nov 2026.

What to do

Affected software

ProductAffectedFixed in
Red Hat Enterprise Linux 10gegl04Affected–Fixed in–
Red Hat Enterprise Linux 6geglAffected–Fixed in–
Red Hat Enterprise Linux 7geglAffected–Fixed in–
Red Hat Enterprise Linux 8geglAffected–Fixed in–
Red Hat Enterprise Linux 8gegl04Affected–Fixed in–
Red Hat Enterprise Linux 9gegl04Affected–Fixed in–

AI-suggested

Red Hat advises not to open untrusted Radiance HDR files (.hdr, .pic) in applications that use the GEGL library. There is no indication that a patch is currently available; therefore, avoiding untrusted files is the primary mitigation. Monitor the Red Hat advisory for updates regarding fixes.

Description

CVE-2026-103641 is a vulnerability in the GEGL library used by Red Hat Enterprise Linux 10. The Radiance HDR loader in GEGL reads beyond the end of a memory-mapped image when an uncompressed scanline is shorter than the width declared in the file header. This can cause applications using the loader to crash when opening specially crafted HDR files. The flaw requires local user interaction to exploit and results in denial of service by application termination without allowing code execution or data modification.

References

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