Vulnerability Description
hashcat master branch builds after v7.1.2 contain a heap buffer overflow vulnerability in the KeePass AESKDF/KDBX v4 module (module 34301) that allows attackers to corrupt adjacent heap memory by supplying an oversized ninth hash field token. The module accepts up to 600 hex characters for the ninth token field but decodes it into a fixed 256-byte buffer with no length check, allowing a maximal input to write up to 44 bytes past the buffer boundary into adjacent esalt fields and heap chunk metadata, potentially enabling heap corruption or memory access violations.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/hashcat/hashcat
- https://github.com/hashcat/hashcat/commit/6f374c4ff7d5dc951530fbbbcf6b45e3c169b1
- https://github.com/hashcat/hashcat/pull/4755
- https://www.vulncheck.com/advisories/hashcat-keepass-kdbx-v4-module-heap-buffer-
FAQ
What is CVE-2026-68765?
CVE-2026-68765 is a vulnerability with a CVSS score of 6.1 (MEDIUM). hashcat master branch builds after v7.1.2 contain a heap buffer overflow vulnerability in the KeePass AESKDF/KDBX v4 module (module 34301) that allows attackers to corrupt adjacent heap memory by supp...
How severe is CVE-2026-68765?
CVE-2026-68765 has been rated MEDIUM with a CVSS base score of 6.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-68765?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.