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CVE-2026-51807

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Osamu Watanabe OpenHTJ2K是Osamu Watanabe个人开发者开源的一款遵循 ISO/IEC 15444-15 标准的开源高性能 JPEG 2000 (HTJ2K) 图像压缩和解压缩库。 Osamu Watanabe OpenHTJ2K 0.18.4及之前版本存在安全漏洞，该漏洞源于j2k_precinct_subband::parse_packet_header()函数中的缓冲区溢出问题，可能导致攻击者执行任意代码。

AI Predicted 9.8 Difficulty: Easy EPSS 0.67% · P50

Possible ATT&CK Techniques 1 AI

T1203 · Exploitation for Client Execution

Affected Version Matrix 1

VendorProduct Version RangeStatus
n/a n/a n/a affected
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I. Basic Information for CVE-2026-51807

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Heap-based out-of-bounds write in j2k_precinct_subband::parse_packet_header() in OpenHTJ2K versions 0.18.3 and earlier (fixed in v0.18.4) caused by missing bounds validation before coding-pass lengths are written to j2k_codeblock::pass_length[128]. A crafted JPEG 2000 codestream containing malformed PPM packet headers can trigger a heap-based out-of-bounds write in j2k_precinct_subband::parse_packet_header() in source/core/coding/coding_units.cpp due to missing bounds validation for the j2k_codeblock::pass_length[128] array which can lead to heap corruption and process termination.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Osamu Watanabe OpenHTJ2K 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Osamu Watanabe OpenHTJ2K是Osamu Watanabe个人开发者开源的一款遵循 ISO/IEC 15444-15 标准的开源高性能 JPEG 2000 (HTJ2K) 图像压缩和解压缩库。 Osamu Watanabe OpenHTJ2K 0.18.4及之前版本存在安全漏洞，该漏洞源于j2k_precinct_subband::parse_packet_header()函数中的缓冲区溢出问题，可能导致攻击者执行任意代码。
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
- n/a n/a -

II. Public POCs for CVE-2026-51807

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2026-51807

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Patches & Fixes for CVE-2026-51807 (2)

Same Patch Batch · n/a · 2026-07-14 · 15 CVEs total

CVE-2026-15702 6.3 MEDIUM tamagui config.ts updateConfig prototype pollution
CVE-2026-15700 4.7 MEDIUM DedeCMS Album Publishing Feature zip.class.php ExtractFile path traversal
CVE-2026-15690 3.1 LOW open62541 Shared Client ua_client_connect.c responseReadNamespacesArray null pointer deref
CVE-2026-51105 amule 缓冲区错误漏洞
CVE-2026-52101 Andrei Marcu linx-server 安全漏洞
CVE-2026-52100 Andrei Marcu linx-server 安全漏洞
CVE-2026-38450 Aetopia Digital Asset Management DAM 安全漏洞
CVE-2025-56361 Connectivity Standards Alliance Matter 安全漏洞
CVE-2025-56364 Connectivity Standards Alliance Matter 安全漏洞
CVE-2025-56365 Connectivity Standards Alliance Matter 安全漏洞
CVE-2025-56362 Connectivity Standards Alliance Matter 安全漏洞
CVE-2025-56363 Connectivity Standards Alliance Matter 安全漏洞
CVE-2026-36035 CAXperts UniversalPlantViewer WebServices Server 安全漏洞
CVE-2026-51808 Osamu Watanabe OpenHTJ2K 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2026-51807

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