EUVD-2026-19626
GHSA-rhmw-w7w3-c647
CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
4Description
An integer overflow vulnerability exists in the uncompressed_fp_dng_load_raw functionality of LibRaw Commit 8dc68e2. A specially crafted malicious file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.
Analysis
Heap buffer overflow in LibRaw's DNG image processing (commit 8dc68e2) enables remote code execution when parsing maliciously crafted uncompressed floating-point DNG files. The vulnerability stems from an integer overflow in uncompressed_fp_dng_load_raw that miscalculates buffer sizes, allowing network-based attackers to achieve arbitrary code execution with high impact to confidentiality, integrity, and availability (CVSS 8.1). …
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Remediation
Within 24 hours: Inventory all systems using LibRaw (check application dependencies, software bills of materials, and package managers); identify production services processing DNG files from untrusted sources; restrict DNG file uploads and processing to internal/trusted sources only. Within 7 days: Implement input validation to reject uncompressed floating-point DNG files at application entry points; deploy network-based file type detection to block suspicious DNG submissions; isolate or air-gap systems requiring LibRaw functionality. …
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