Off-by-one Error Affecting hashcat package, versions *


Severity

Recommended
low

Based on Debian security rating.

Threat Intelligence

EPSS
0.13% (3rd percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-HASHCAT-19232199
  • published23 Aug 2026
  • disclosed22 Aug 2026

Introduced: 22 Aug 2026

NewCVE-2026-68767  (opens in a new tab)
CWE-193  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable hashcat.

NVD Description

Note: Versions mentioned in the description apply only to the upstream hashcat package and not the hashcat package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

hashcat's fgetl() function in src/filehandling.c writes a null terminator one byte past the caller's buffer when an input line is exactly the buffer length. Attackers can trigger this out-of-bounds heap write by providing a hash file, potfile, or wordlist containing a line of exactly HCBUFSIZ_LARGE bytes.

CVSS Base Scores

version 3.1