CVE-2026-20889 CRITICAL

CVE-2026-20889

Vendor Libraw

Product LibRaw

Weakness CWE-190

Published April 7, 2026

Last update June 30, 2026

View on NVD All CVEs

CVSS base score

9.8/10

Attack vector Network

Attack complexity Low

Privileges required None

User interaction None

Confidentiality High

Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 7, 2026 CVE published

June 30, 2026 Record updated

External resources

03References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2026-20889 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/190.html

Related vulnerabilities

04Related CVE

CVE-2026-27781 kernel_liteos_a has an integer overflow vulnerability CVE-2026-43618 Rsync < 3.4.3 Integer Overflow Information Disclosure CVE-2026-43907 OpenImageIO: Integer overflow in QueryRGBBufferSizeInternal leads to heap out-of-bounds write in DPX decoder (kCbYCr and kABGR) CVE-2026-10722 cilium ebpf LoadCollectionSpec/LoadCollectionSpecFromReader btf.go loadRawSpec integer overflow CVE-2026-10649 Pacemaker: pacemaker: denial of service via integer overflow in remote message decompression