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CVE-2026-111151— OpenJPH through 0.32.0 Heap Out-of-Bounds Write in HTJ2K Cleanup-Pass Decoder

Quick assessment

Affected
aous72 OpenJPH
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.

OpenJPH 版本直至 0.32.0 存在一个堆缓冲区越界写入漏洞，该漏洞位于 HTJ2K 清理通道解码器中，攻击者可通过单行代码块（one-row codeblocks）利用此漏洞破坏内存。攻击者可以提供精心构造的 .j2c 或 .jph 码流，并设置较小的区域（precinct）大小，从而导致解码器在代码块缓冲区之外写入第二行数据，引发内存损坏及程序崩溃。

CVSS 6.1 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
aous72 OpenJPH ≤ 0.32.0 affected
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I. Basic Information for CVE-2026-111151

Vulnerability Information
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Vulnerability Title
OpenJPH through 0.32.0 Heap Out-of-Bounds Write in HTJ2K Cleanup-Pass Decoder
Source: CVE Program / CVE List V5
Vulnerability Description
OpenJPH through 0.32.0 contains a heap out-of-bounds write vulnerability in the HTJ2K cleanup-pass decoder that allows attackers to corrupt memory via one-row codeblocks. Attackers can supply a crafted .j2c or .jph codestream with small precinct sizes, causing the decoder to write a second row past the codeblock buffer, resulting in memory corruption and crashes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
aous72 OpenJPH 0 ~ 0.32.0 -

II. Public POCs for CVE-2026-111151

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III. Intelligence Information for CVE-2026-111151

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Patches & Fixes for CVE-2026-111151 (2)

Vendor Advisories for CVE-2026-111151 (1)

Security Blog Posts for CVE-2026-111151 (1)

Other References for CVE-2026-111151 (1)

IV. Related Vulnerabilities

Same weakness: CWE-787

V. Comments for CVE-2026-111151

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