CVE-2026-120252 | BDVDB-2026-398813 Detail

Description#

imagecodecs 2023.1.23 through 2026.10.10 contains a stack-based buffer overflow vulnerability in the lossless JPEG Define Huffman Table parser in decode_jpegsof3(). Attackers can supply a crafted lossless JPEG whose DHT symbol counts wrap an 8-bit sum, overflowing the 32-entry HufVal and HufSz stack arrays and crashing the calling process.

Impact#

Weaknesses#

References#

Exploit#

History#

1. Version 12026-11-01Record published in the CVE List.
2. Version 22026-11-02Most recent update recorded in the CVE List.