CVE-2026-111151OpenJPH through 0.32.0 Heap Out-of-Bounds Write in HTJ2K Cleanup-Pass Decoder
Updated under an hour ago ()
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It affects aous72 OpenJPH. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 6.1 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
- Weakness (CWE)
- CWE-787
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
aous72 OpenJPH aous72:openjph (from the name) | through 0.32.0 | CNA record |
References
- https://hackmd.io/@haind-pwn/openjph-htj2k-degenerate-codeblock-cleanup-oob-writetechnical-description, exploit
- https://github.com/aous72/OpenJPH/blob/23c422895ce6c3a156935222e4715ee0b7be952c/src/core/codestream/ojph_subband.cpp#L136-L142technical-description
- https://github.com/aous72/OpenJPH/blob/23c422895ce6c3a156935222e4715ee0b7be952c/src/core/codestream/ojph_codeblock.cpp#L79-L84technical-description
- https://github.com/aous72/OpenJPH/blob/23c422895ce6c3a156935222e4715ee0b7be952c/src/core/coding/ojph_block_decoder32.cpp#L1135-L1155technical-description
- https://github.com/aous72/OpenJPHproduct
- https://www.vulncheck.com/advisories/openjph-through-0.32.0-heap-out-of-bounds-write-in-htj2k-cleanup-pass-decoderthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.