OpenJPH up to 0.32.0 HTJ2K Cleanup-Pass Decoder out-of-bounds write

Summaryinfo

A vulnerability described as problematic has been identified in OpenJPH up to 0.32.0. Affected by this vulnerability is an unknown functionality of the component HTJ2K Cleanup-Pass Decoder. Executing a manipulation can lead to out-of-bounds write. This vulnerability appears as CVE-2026-111151. The attack requires local access. There is no available exploit.

Detailsinfo

A vulnerability was found in OpenJPH up to 0.32.0. It has been declared as problematic. This vulnerability affects an unknown code block of the component HTJ2K Cleanup-Pass Decoder. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect integrity, and availability. CVE summarizes:

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.

The advisory is available at hackmd.io. This vulnerability was named CVE-2026-111151 since 10/15/2026. The exploitation appears to be easy. Local access is required to approach this attack. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• OpenJPH

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30
• 0.31
• 0.32.0

CPE 2.3info

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CPE 2.2info

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