CVE-2026-42482
Description
A stack-based buffer overflow in mangle_to_hex_lower() and mangle_to_hex_upper() in src/rp_cpu.c in hashcat v7.1.2 allows an attacker to cause a denial of service or possibly execute arbitrary code via a crafted rule file, or via the -j or -k rule options used with password candidates of 128 or more characters. The vulnerability is caused by a bounds check that fails to account for the 2x expansion that occurs when password bytes are converted to hexadecimal.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2026-42482.html
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2026-42482
Vendor advisory: cve@mitre.org — https://gist.github.com/sgInnora/107f2eb20367e47d58c911e38d56a91f
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| debian | bookworm | affected | |
| debian | bullseye | affected | |
| debian | forky | affected | |
| debian | sid | affected | |
| debian | trixie | affected | |
| sles | affected | |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| hashcat | hashcat | 7.1.2 | |
References
CWEs
CWE-787 CWE-121
Verify integrity in audit chain (admin only). AS-IS.