CVE-2026-20889

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.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2026-2358	Exploit Third Party Advisory
https://www.talosintelligence.com/vulnerability_reports/TALOS-2026-2358	Exploit Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:13284
https://access.redhat.com/errata/RHSA-2026:14224
https://access.redhat.com/errata/RHSA-2026:14655
https://access.redhat.com/errata/RHSA-2026:14673
https://access.redhat.com/security/cve/CVE-2026-20889
https://bugzilla.redhat.com/show_bug.cgi?id=2455942
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-20889.json

Configurations

Configuration 1 (hide)

cpe:2.3:a:libraw:libraw:0.22.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-04-07 15:17

Updated : 2026-07-15 02:18

NVD link : CVE-2026-20889

Mitre link : CVE-2026-20889

CVE.ORG link : CVE-2026-20889

JSON object : View

Products Affected

libraw

libraw

CWE

CWE-190

Integer Overflow or Wraparound

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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