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TI-2026-48347 Aliases CVE-2026-68765GHSA-jfqq-rfm8-8frm

hashcat KeePass KDBX v4 Module Heap Buffer Overflow via Token Field

Priority LOW 23CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
Active
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · Low · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0018 7th percentileScored 2026-11-07
Fix Fixed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

No affected products listed by the sources yet.

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-68765
  2. 2026-10-03 Alias added: GHSA-jfqq-rfm8-8frm

References

Patch 2

Other 1

  • TI-2026-30768 A heap-based buffer overflow in hex_to_binary in the PKZIP hash parser in hashcat v7.1.2… CVSS 3.1CRITICAL 9.8
  • TI-2026-30767 A heap-based buffer overflow in the Kerberos hash parser in hashcat v7.1.2 allows an… CVSS 3.1CRITICAL 9.8
  • TI-2026-48348 hashcat through 7.1.2 Arbitrary File Write via Restore File Option Injection CVSS 4.0HIGH 8.5
  • TI-2026-48350 hashcat through 7.1.2 Heap Buffer Overflow in outfile_write() via Oversized Username CVSS 4.0MEDIUM 6.9
  • TI-2026-30766 A stack-based buffer overflow in mangle_to_hex_lower() and mangle_to_hex_upper() in… CVSS 3.1CRITICAL 9.8
  • TI-2026-48349 hashcat through 7.1.2 Off-by-One Out-of-Bounds Heap Write in fgetl() CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences