CVE-2026-68766: Argument Injection (CVSS 7.8)

Description

hashcat fails to restrict command-line options when parsing restore files, allowing attackers to inject output-redirecting options like --outfile and --potfile-path. Attackers can craft restore files with malicious options to append attacker-controlled content to arbitrary files, enabling code execution when targeting shell startup files.

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CVSS v3.1 Score

7.8

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0016

Probability of exploitation

0.06%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-88 CWE-88

References

Other References

https://github.com/hashcat/hashcat https://github.com/hashcat/hashcat/blob/v7.1.2/src/restore.c#L365-L369 https://github.com/hashcat/hashcat/commit/fcae69f2438ff8eae0dc8e206b78067a1e465ed4 https://github.com/hashcat/hashcat/issues/4738 https://www.vulncheck.com/advisories/hashcat-through-arbitrary-file-write-via-restore-file-option-injection https://github.com/hashcat/hashcat/issues/4738

Frequently Asked Questions

What is CVE-2026-68766? +

hashcat fails to restrict command-line options when parsing restore files, allowing attackers to inject output-redirecting options like --outfile and --potfile-path. Attackers can craft restore files with malicious options to append attacker-controlled content to arbitrary files, enabling code execution when targeting shell startup files. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-68766? +

CVE-2026-68766 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0016, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-68766? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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