CVE-2026-20911: Buffer Overflow
Published Apr 7, 2026
·Updated
A heap-based buffer overflow vulnerability exists in the HuffTable::initval functionality of LibRaw Commit 0b56545 and 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.
Affected Software
2 affected components
Libraw Libraw=0.22.0
Libraw Libraw=0.22.1
Event History
Apr 7, 2026
CVE Published
via MITRE·01:49 PM
Data Sourced
via MITRE·01:49 PM
DescriptionSeverityWeakness
Data Sourced
via Red Hat·03:06 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·03:17 PM
DescriptionSeverityWeaknessAffected Software
Frequently Asked Questions
1
What is the severity of CVE-2026-20911?
CVE-2026-20911 has a critical severity rating of 9.8.
2
How do I fix CVE-2026-20911?
To fix CVE-2026-20911, update LibRaw to the latest version that addresses this vulnerability.
3
What type of vulnerability is CVE-2026-20911?
CVE-2026-20911 is classified as a heap-based buffer overflow vulnerability.
4
What can an attacker do with CVE-2026-20911?
An attacker can exploit CVE-2026-20911 by providing a specially crafted malicious file to trigger a heap buffer overflow.
5
Which software is affected by CVE-2026-20911?
The vulnerability CVE-2026-20911 affects the LibRaw software.