CVE-2026-20911
LibRaw: LibRaw: Arbitrary Code Execution via specially crafted file
Severity
ImportantRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · April 7, 2026
Updated · June 30, 2026
Description
A flaw was found in LibRaw. A remote attacker can exploit a heap-based buffer overflow vulnerability in the HuffTable::initval functionality by providing a specially crafted malicious file. This can lead to arbitrary code execution or a denial of service (DoS) on the affected system.
Statement
LibRaw is not installed by default on Red Hat systems. A user would need to manually install and make available an affected code path for this vulnerability to be exploitable.
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
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')