CVE-2026-68765

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Source
https://cve.org/CVERecord?id=CVE-2026-68765
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68765.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-68765
Downstream
Published
2026-08-17T20:48:17Z
Modified
2026-08-24T03:59:14Z
Severity
  • 5.2 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:A/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
hashcat KeePass KDBX v4 Module Heap Buffer Overflow via Token Field
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-122"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68765.json",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "ef52453de9523f6a010652847b61cb340ed5daa5"
                },
                {
                    "fixed": "6f374c4ff7d5dc951530fbbbcf6b45e3c169b100"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/hashcat/hashcat

Affected ranges

Type
GIT
Repo
https://github.com/hashcat/hashcat
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6f374c4ff7d5dc951530fbbbcf6b45e3c169b100
Database specific
Show details 
{
    "source": "REFERENCES"
}

Affected versions

v2.*
v2.00
v2.01
v3.*
v3.00
v3.00-beta
v3.10
v3.20
v3.30
v3.40
v3.5.0
v3.6.0
v4.*
v4.0.0
v4.0.1
v4.1.0
v4.2.0
v4.2.1
v5.*
v5.0.0
v5.1.0
v6.*
v6.0.0
v6.1.0
v6.1.1
v6.2.0
v6.2.1
v6.2.2
v6.2.3
v6.2.4
v6.2.5
v6.2.6
v7.*
v7.0.0
v7.1.0
v7.1.1
v7.1.2

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-68765.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "154972518074494010425388749909058652890",
                "294949542723853973627095133610561534863",
                "92645582180295890443532387694795439506",
                "320703545442687502575685391251602100259",
                "112408457823329701692176317578050680560",
                "184907560963004414263407472400611124195",
                "240204550253410405863466676232149307250"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-68765-f3b9b3a1",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/hashcat/hashcat/commit/6f374c4ff7d5dc951530fbbbcf6b45e3c169b100",
        "target": {
            "file": "src/modules/module_34301.c"
        }
    }
]
vanir_signatures_modified 
"2026-08-24T03:59:14Z"