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CVE-2026-5318

LibRaw JPEG DHT losslessjpeg.cpp initval out-of-bounds write

Published: Apr 2, 2026Updated: Apr 29, 2026 Sources: CVE List NVDCWE-119
NVD MITRE
4.3CVSSMEDIUM
EPSS Score
0.6%
Top 54.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A weakness has been identified in LibRaw up to 0.22.0. This impacts the function HuffTable::initval of the file src/decompressors/losslessjpeg.cpp of the component JPEG DHT Parser. This manipulation of the argument bits[] causes out-of-bounds write. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 0.22.1 will fix this issue. Patch name: a6734e867b19d75367c05f872ac26322464e3995. It is advisable to upgrade the affected component.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-119CWE-787

Affected Products

LibRawn/a
librawlibraw
LibraryLibrary
OSS Libraries / generic-library
librawoss-projectOSS Libraries

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://vuldb.com/vuln/354650
vuldb.com
https://vuldb.com/vuln/354650/cti
vuldb.com
https://vuldb.com/submit/780538
vuldb.com
and 6 more references View all →

Timeline

Published
Apr 2, 2026
Last Updated
Apr 29, 2026

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