EUVD-2026-44580

Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the j2kprecinctsubband::parsepacketheader in source/core/coding/codingunits.cpp...

EUVD-2026-44581

Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2kdecoderimpl::invoke, invokelinebased, invokelinebasedstream, and invokelinebasedpredecoded function in source/core/interface/decoder.cpp...

CVE-2026-51808

Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2kdecoderimpl::invoke, invokelinebased, invokelinebasedstream, and invokelinebasedpredecoded function in source/core/interface/decoder.cpp...

CVE-2026-51807

Heap-based out-of-bounds write in j2kprecinctsubband::parsepacketheader 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 j2kcodeblock::passlength128. A crafted JPEG 2000 codestream containing malformed PPM pack...

CVE-2026-51808

Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2kdecoderimpl::invoke, invokelinebased, invokelinebasedstream, and invokelinebasedpredecoded function in source/core/interface/decoder.cpp...

CVE-2026-51807

Heap-based out-of-bounds write in j2kprecinctsubband::parsepacketheader 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 j2kcodeblock::passlength128. A crafted JPEG 2000 codestream containing malformed PPM pack...

CVE-2026-51808

Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2kdecoderimpl::invoke, invokelinebased, invokelinebasedstream, and invokelinebasedpredecoded function in source/core/interface/decoder.cpp...

PT-2026-58863

Name of the Vulnerable Software and Affected Versions OpenHTJ2K versions prior to 0.18.4 Description A buffer overflow allows an attacker to execute arbitrary code. The issue exists within the openhtj2k decoder impl::invoke, invoke line based, invoke line based stream, and invoke line based...

CVE-2026-51807

OpenHTJ2K versions 0.18.3 and earlier (fixed in v0.18.4 ) are vulnerable to a heap-based out-of-bounds write in the j2k_precinct_subband::parse_packet_header() function. The root cause is a missing bounds validation before coding-pass lengths are written to the j2k_codeblock::pass_length[128] arr...

CVE-2026-51807

Heap-based out-of-bounds write in j2kprecinctsubband::parsepacketheader 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 j2kcodeblock::passlength128. A crafted JPEG 2000 codestream containing malformed PPM pack...

PT-2026-58862

Name of the Vulnerable Software and Affected Versions OpenHTJ2K versions prior to 0.18.5 Description A buffer overflow exists that allows an attacker to execute arbitrary code. The issue occurs within the j2k precinct subband::parse packet header function located in source/core/coding/coding...

CVE-2026-51808: Buffer Copy without Checking Size of Input

Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2kdecoderimpl::invoke, invokelinebased, invokelinebasedstream, and invokelinebasedpredecoded function in source/core/interface/decoder.cpp...

CVE-2026-51808

A Buffer Overflow vulnerability exists in OpenHTJ2K versions v.0.18.4 and before . The root cause is a failure to check the size of the input during a buffer copy, specifically within the openhtj2k_decoder_impl::invoke, invoke_line_based, invoke_line_based_stream, and invoke_line_based_predecoded...

CVE-2026-51807

Heap-based out-of-bounds write in j2kprecinctsubband::parsepacketheader 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 j2kcodeblock::passlength128. A crafted JPEG 2000 codestream containing malformed PPM pack...

CVE-2026-51807

Heap-based out-of-bounds write in j2kprecinctsubband::parsepacketheader 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 j2kcodeblock::passlength128. A crafted JPEG 2000 codestream containing malformed PPM pack...

CVE-2026-51808

Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2kdecoderimpl::invoke, invokelinebased, invokelinebasedstream, and invokelinebasedpredecoded function in source/core/interface/decoder.cpp...

CVE-2026-51807: Stack-based Buffer Overflow

Heap-based out-of-bounds write in j2kprecinctsubband::parsepacketheader 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 j2kcodeblock::passlength128. A crafted JPEG 2000 codestream containing malformed PPM pack...

CVE-2026-51808

Buffer Overflow vulnerability in OpenHTJ2K v.0.18.4 and before allows an attacker to execute arbitrary code via the openhtj2kdecoderimpl::invoke, invokelinebased, invokelinebasedstream, and invokelinebasedpredecoded function in source/core/interface/decoder.cpp...

CVE-2021-45935

Grok 9.5.0 has a heap-based buffer overflow in openhtj2k::T1OpenHTJ2K::decompress called from std::1::packagedtaskfuncstd::1::bindgrk::T1DecompressScheduler::deco and std::1::packagedtaskint...

Grok Buffer Overflow Vulnerability

Grok is a regular expression that uses a combination of multiple predefined . A tool used to match split text and map to keywords. Often used to preprocess log data. A buffer overflow vulnerability exists in Grok version 9.5.0, which stems from the product's openhtj2k::T1OpenHTJ2K::decompress...