Bug 2455934 (CVE-2026-20884)

Summary: CVE-2026-20884 LibRaw: LibRaw: Arbitrary code execution via integer overflow in deflate_dng_load_raw
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
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. An integer overflow vulnerability in the `deflate_dng_load_raw` functionality allows a remote attacker to provide a specially crafted malicious file. This can lead to a heap buffer overflow, potentially resulting in arbitrary code execution.
Story Points: ---
Clone Of: Environment:
Last Closed: Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2456555, 2456556, 2456560, 2456557, 2456558, 2456561    
Bug Blocks:    

Description OSIDB Bzimport 2026-04-07 15:03:07 UTC
An integer overflow vulnerability exists in the deflate_dng_load_raw functionality of LibRaw Commit 8dc68e2. 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 Marco Benatto 2026-04-08 16:51:48 UTC
Upstream commit for this issue:

https://github.com/LibRaw/LibRaw/commit/aa4458eb511daeae90676c1ce5c587106e4aaec1