CVE-2026-51808

State: Published
Severity: 9.8 Critical
Published: Jul 14, 2026
Updated: Jul 15, 2026
Reserved: Jun 8, 2026

Description

Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2k_decoder_impl::invoke, invoke_line_based, invoke_line_based_stream, and invoke_line_based_predecoded function in source/core/interface/decoder.cpp

Scores

CVSS	Score	Vector	Source
3.1	9.8 Critical	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	CISA-ADP

Weaknesses

CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Affected Products

Product	Versions
n/an/a	n/aAffected

References

https://github.com/osamu620/OpenHTJ2K/blob/main/CHANGELOG
https://github.com/osamu620/OpenHTJ2K/pull/320
https://github.com/osamu620/OpenHTJ2K/releases/tag/v0.18.5

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