CVE-2026-5318: medium-severity vulnerability in LibRaw
LibRaw JPEG DHT losslessjpeg.cpp initval out-of-bounds write
Published · Updated
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33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.6%
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: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
Affected products
n/a · LibRawpublic PoCs found — 1
cve_referencegithub.com/biniamf/pocs/tree/main/libraw_lljpegunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
References
https://github.com/biniamf/pocs/tree/main/libraw_lljpeghttps://github.com/LibRaw/LibRaw/https://github.com/LibRaw/LibRaw/commit/a6734e867b19d75367c05f872ac26322464e3995https://github.com/LibRaw/LibRaw/issues/794https://github.com/LibRaw/LibRaw/issues/794#issuecomment-4065342499https://github.com/LibRaw/LibRaw/releases/tag/0.22.1https://vuldb.com/submit/780538https://vuldb.com/vuln/354650https://vuldb.com/vuln/354650/cti