| 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) |
| Debian Bugs | 1136004 |
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) | | | 1136004 |
Notes
[trixie] - hashcat <no-dsa> (Minor issue)
[bookworm] - hashcat <no-dsa> (Minor issue)
[bullseye] - hashcat <postponed> (Minor issue; can be fixed in next update)
https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f