CVE-2026-42484

Name	CVE-2026-42484
Description	A heap-based buffer overflow in hex_to_binary in the PKZIP hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted PKZIP hash file. The issue affects modules 17200, 17210, 17220, 17225, and 17230. When data_type_enum<=1, attacker-controlled hex data from a user-supplied hash string is decoded into a fixed-size buffer without proper input-length validation.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
hashcat (PTS)	bullseye	6.1.1+ds1-1	vulnerable
	bookworm	6.2.6+ds1-1	vulnerable
	trixie	6.2.6+ds2-1	vulnerable
	forky, sid	7.1.2+ds1-4	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
hashcat	source	(unstable)	(unfixed)

https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f
check upstream details