CVE-2026-5318

Name: CVE-2026-5318
Creator: NVD / NIST
Published: 2026-04-02T03:16:07.08+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

LOWCVSS 2.1/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2026-5318 is a low-severity vulnerability rated 2.1/10 on the CVSS scale. 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. EPSS estimates a 0.63% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

4.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

CVSS 4.0

2.1/10

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability

0.63%

45.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Libraw	Libraw	< 0.22.1

References

https://github.com/LibRaw/LibRaw/Product
https://github.com/LibRaw/LibRaw/commit/a6734e867b19d75367c05f872ac26322464e3995Patch
https://github.com/LibRaw/LibRaw/issues/794Issue Tracking
https://github.com/LibRaw/LibRaw/issues/794#issuecomment-4065342499Issue Tracking
https://github.com/LibRaw/LibRaw/releases/tag/0.22.1Product, Release Notes
https://github.com/biniamf/pocs/tree/main/libraw_lljpegExploit, Third Party Advisory
https://vuldb.com/submit/780538Exploit, Third Party Advisory, VDB Entry
https://vuldb.com/vuln/354650Third Party Advisory, VDB Entry
https://vuldb.com/vuln/354650/ctiPermissions Required, VDB Entry

Timeline

Published: Apr 2, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-5318?

How severe is CVE-2026-5318?

CVE-2026-5318 has a CVSS score of 2.1/10 (LOW severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2026-5318?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-5318?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST