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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.

PUBLISHED Reserved 2026-04-01 | Published 2026-04-02 | Updated 2026-04-07 | Assigner VulDB




MEDIUM: 5.3CVSS: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
MEDIUM: 4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
MEDIUM: 4.3CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
5.0AV:N/AC:L/Au:N/C:N/I:N/A:P/E:POC/RL:OF/RC:C

Problem types

Out-of-bounds Write

Memory Corruption

Timeline

2026-04-01:Advisory disclosed
2026-04-01:VulDB entry created
2026-04-07:VulDB entry last update

Credits

biniam (VulDB User) reporter

References

vuldb.com/vuln/354650 (VDB-354650 | LibRaw JPEG DHT losslessjpeg.cpp initval out-of-bounds write) vdb-entry technical-description

vuldb.com/vuln/354650/cti (VDB-354650 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/submit/780538 (Submit #780538 | LibRaw 0.22.0 Out-of-bounds Write) third-party-advisory

github.com/LibRaw/LibRaw/issues/794 issue-tracking

github.com/LibRaw/LibRaw/issues/794 issue-tracking

github.com/biniamf/pocs/tree/main/libraw_lljpeg exploit

github.com/...ommit/a6734e867b19d75367c05f872ac26322464e3995 patch

github.com/LibRaw/LibRaw/releases/tag/0.22.1 patch

github.com/LibRaw/LibRaw/ product

cve.org (CVE-2026-5318)

nvd.nist.gov (CVE-2026-5318)

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