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CVE-2026-20889

| EUVD-2026-19620 CRITICAL
Integer Overflow or Wraparound (CWE-190)
2026-04-07 talos GHSA-9m8r-gj3p-r7rw
9.8
CVSS 3.1
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CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
Patch released
Apr 09, 2026 - 14:30 nvd
Patch available
EUVD ID Assigned
Apr 07, 2026 - 14:30 euvd
EUVD-2026-19620
Analysis Generated
Apr 07, 2026 - 14:30 vuln.today
CVE Published
Apr 07, 2026 - 13:49 nvd
CRITICAL 9.8

DescriptionNVD

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.

AnalysisAI

Heap-based buffer overflow in LibRaw's x3f_thumb_loader function allows remote code execution via malformed image files. The vulnerability affects LibRaw commit d20315b, a widely-used raw image processing library integrated into applications like ImageMagick, GIMP, and numerous photo management tools. …

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RemediationAI

Within 24 hours: Inventory all systems running ImageMagick, GIMP, and photo management tools dependent on LibRaw; disable or restrict access to image processing services accepting untrusted external files. Within 7 days: Implement input validation to reject malformed x3f and other raw image formats from external sources; apply network segmentation to isolate image processing services. …

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Vendor StatusVendor

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CVE-2026-20889 vulnerability details – vuln.today

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