CVE-2026-42483

Name	CVE-2026-42483
Description	A heap-based buffer overflow in the Kerberos hash parser in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted Kerberos hash file. The issue affects module_hash_decode in multiple Kerberos-related modules because account_info_len is calculated from untrusted delimiter positions without upper-bound validation before memcpy copies the data into a fixed-size account_info buffer.
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