Bug 2455942 (CVE-2026-20889)

Summary: CVE-2026-20889 LibRaw: LibRaw: Arbitrary code execution via specially crafted image file
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in LibRaw, a library used for processing raw image files. This vulnerability, a heap-based buffer overflow, exists within the x3f_thumb_loader functionality. A remote attacker could exploit this by tricking a user into opening a specially crafted malicious file. Successful exploitation could lead to arbitrary code execution, giving the attacker full control over the affected system.
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Clone Of: Environment:
Last Closed: Type: ---
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Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2456217, 2456221, 2456225, 2456230, 2456233, 2456238, 2456241, 2456243    
Bug Blocks:    

Description OSIDB Bzimport 2026-04-07 15:03:57 UTC
A heap-based buffer overflow vulnerability exists in the x3f_thumb_loader functionality of LibRaw Commit d20315b. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

Comment 2 errata-xmlrpc 2026-05-04 01:45:04 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:13284 https://access.redhat.com/errata/RHSA-2026:13284

Comment 3 errata-xmlrpc 2026-05-06 16:49:33 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On

Via RHSA-2026:14224 https://access.redhat.com/errata/RHSA-2026:14224

Comment 4 errata-xmlrpc 2026-05-07 04:34:59 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
  Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Via RHSA-2026:14655 https://access.redhat.com/errata/RHSA-2026:14655

Comment 5 errata-xmlrpc 2026-05-07 06:25:42 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
  Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Via RHSA-2026:14673 https://access.redhat.com/errata/RHSA-2026:14673