Buffer overflow in Libraw
CVE-2026-5318
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-bou…
Vulnerability class: Buffer Overflow
EPSS: 0.001 (22.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
Affected products
- Libraw
- N/a Libraw — versions 0.1, 0.2, 0.3
Weakness classification (CWE)
References
- VDB-354650 | LibRaw JPEG DHT losslessjpeg.cpp initval out-of-bounds write (technical-description, Third Party Advisory, VDB Entry, vdb-entry)
- VDB-354650 | CTI Indicators (IOB, IOC, IOA) (signature, Permissions Required, permissions-required, VDB Entry)
- Submit #780538 | LibRaw 0.22.0 Out-of-bounds Write (Exploit, Third Party Advisory, VDB Entry, third-party-advisory)
- cna@vuldb.com (issue-tracking, Issue Tracking)
- cna@vuldb.com (issue-tracking, Issue Tracking)
- cna@vuldb.com (Exploit, Third Party Advisory, exploit)
- cna@vuldb.com (Patch, patch)
- cna@vuldb.com (Product, Release Notes, patch)
- cna@vuldb.com (Product, product)
Frequently asked questions
- What is CVE-2026-5318?
- CVE-2026-5318 is a medium-severity vulnerability in Libraw, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 4.3/10. Published 2026-04-02.
- How severe is CVE-2026-5318?
- Medium severity. CVSS v3 base score is 4.3 out of 10.