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DEBIAN-CVE-2026-86776

Type: advisorySource: OSV1 source record

KeePass versions 2.35 through 2.61.1 fail to validate KDBX header field sizes before memory allocation in the ReadHeaderField function. Attackers can craft a malicious KDBX file declaring excessive header field lengths to trigger allocation of gigabytes of memory, causing the application to consume resources and terminate.

Announced Source revision 1
Original source ↗

DEBIAN-CVE-2026-86776

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-86776

keepass2

Source reference: /affected/0/package/name

Affected versions
2.47+dfsg-2

Source reference: /affected/0/versions

2.57+dfsg-1

Source reference: /affected/0/versions

2.57+dfsg-1~bpo12+1

Source reference: /affected/0/versions

2.57+dfsg-2

Source reference: /affected/0/versions

2.57+dfsg-3

Source reference: /affected/0/versions

2.57+dfsg-4

Source reference: /affected/0/versions

2.60+dfsg-1

Source reference: /affected/0/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

keepass2

Source reference: /affected/1/package/name

Affected versions
2.57+dfsg-3

Source reference: /affected/1/versions

2.57+dfsg-4

Source reference: /affected/1/versions

2.60+dfsg-1

Source reference: /affected/1/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

keepass2

Source reference: /affected/2/package/name

Affected versions
2.57+dfsg-3

Source reference: /affected/2/versions

2.57+dfsg-4

Source reference: /affected/2/versions

2.60+dfsg-1

Source reference: /affected/2/versions

Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "keepass2",
      "purl": "pkg:deb/debian/keepass2?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "2.47+dfsg-2",
      "2.57+dfsg-1",
      "2.57+dfsg-1~bpo12+1",
      "2.57+dfsg-2",
      "2.57+dfsg-3",
      "2.57+dfsg-4",
      "2.60+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86776.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "keepass2",
      "purl": "pkg:deb/debian/keepass2?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "2.57+dfsg-3",
      "2.57+dfsg-4",
      "2.60+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86776.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "keepass2",
      "purl": "pkg:deb/debian/keepass2?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "2.57+dfsg-3",
      "2.57+dfsg-4",
      "2.60+dfsg-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86776.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event
#58515 · Revision 1
Added to Heist Feed
Publisher date
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