CVE-2026-5318— LibRaw JPEG DHT losslessjpeg.cpp initval out-of-bounds write
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I. Basic Information for CVE-2026-5318
Vulnerability Information
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Vulnerability Title
LibRaw JPEG DHT losslessjpeg.cpp initval out-of-bounds write
Source: NVD (National Vulnerability Database)
Vulnerability 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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
Libraw 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Libraw是Libraw公司的一个用来处理RAW(CRW/CR2,NEF,RAF,DNG,andothers)格式图片的C++库，支持各种操作系统。 LibRaw 0.22.0及之前版本存在缓冲区错误漏洞，该漏洞源于组件JPEG DHT Parser的文件src/decompressors/losslessjpeg.cpp中函数HuffTable::initval对参数bits[]的操作存在越界写入，可能导致远程攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| - | LibRaw | 0.1 | cpe:2.3:a:libraw:libraw:*:*:*:*:*:*:*:* |
II. Public POCs for CVE-2026-5318
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- Submit #780538: LibRaw 0.22.0 Out-of-bounds Writethird-party-advisory
- CVE-2026-5318 LibRaw JPEG DHT losslessjpeg.cpp initval out-of-bounds write (Issue 794)vdb-entrytechnical-description
- https://nvd.nist.gov/vuln/detail/CVE-2026-5318
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