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.
History

Fri, 03 Apr 2026 20:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 02 Apr 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 02 Apr 2026 02:30:00 +0000

Type Values Removed Values Added
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.
Title LibRaw JPEG DHT losslessjpeg.cpp initval out-of-bounds write
First Time appeared Libraw
Libraw libraw
Weaknesses CWE-119
CWE-787
CPEs cpe:2.3:a:libraw:libraw:*:*:*:*:*:*:*:*
Vendors & Products Libraw
Libraw libraw
References
Metrics cvssV2_0

{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C'}

cvssV3_0

{'score': 4.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published: 2026-04-02T01:45:12.421Z

Updated: 2026-04-03T19:48:59.933Z

Reserved: 2026-04-01T12:43:19.844Z

Link: CVE-2026-5318

cve-icon Vulnrichment

Updated: 2026-04-03T19:48:54.987Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-02T03:16:07.080

Modified: 2026-04-03T16:10:52.680

Link: CVE-2026-5318

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-04-02T01:45:12Z

Links: CVE-2026-5318 - Bugzilla