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ALPINE-CVE-2026-41564

Type: advisorySource: OSV1 source record

CryptX versions before 0.088 for Perl do not reseed the Crypt::PK PRNG state after forking. The Crypt::PK::RSA, Crypt::PK::DSA, Crypt::PK::DH, Crypt::PK::ECC, Crypt::PK::Ed25519 and Crypt::PK::X25519 modules seed a per-object PRNG state in their constructors and reuse it without fork detection. A Crypt::PK::* object created before `fork()` shares byte-identical PRNG state with every child process, and any randomized operation they perform can produce identical output, including key generation. Two ECDSA or DSA signatures from different processes are enough to recover the signing private key through nonce-reuse key recovery. This affects preforking services such as the Starman web server, where a Crypt::PK::* object loaded at startup is inherited by every worker process.

Announced Source revision 1
Original source ↗

ALPINE-CVE-2026-41564

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:ALPINE-CVE-2026-41564

perl-cryptx

Source reference: /affected/0/package/name

Affected versions
Not stated in this record
Fixed versions
0.088-r0

Source reference: /affected/0/ranges

Prerequisites
Not stated in this record

perl-cryptx

Source reference: /affected/1/package/name

Affected versions
Not stated in this record
Fixed versions
0.088-r0

Source reference: /affected/1/ranges

Prerequisites
Not stated in this record

perl-cryptx

Source reference: /affected/2/package/name

Affected versions
Not stated in this record
Fixed versions
0.088-r0

Source reference: /affected/2/ranges

Prerequisites
Not stated in this record

perl-cryptx

Source reference: /affected/3/package/name

Affected versions
Not stated in this record
Fixed versions
0.088-r0

Source reference: /affected/3/ranges

Prerequisites
Not stated in this record

perl-cryptx

Source reference: /affected/4/package/name

Affected versions
Not stated in this record
Fixed versions
0.088-r0

Source reference: /affected/4/ranges

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"
          },
          {
            "fixed": "0.088-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "perl-cryptx",
      "purl": "pkg:apk/alpine/perl-cryptx?arch=source",
      "ecosystem": "Alpine:v3.20"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-41564.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.088-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "perl-cryptx",
      "purl": "pkg:apk/alpine/perl-cryptx?arch=source",
      "ecosystem": "Alpine:v3.21"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-41564.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.088-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "perl-cryptx",
      "purl": "pkg:apk/alpine/perl-cryptx?arch=source",
      "ecosystem": "Alpine:v3.22"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-41564.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.088-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "perl-cryptx",
      "purl": "pkg:apk/alpine/perl-cryptx?arch=source",
      "ecosystem": "Alpine:v3.23"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-41564.json"
    },
    "ecosystem_specific": {}
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          },
          {
            "fixed": "0.088-r0"
          }
        ]
      }
    ],
    "package": {
      "name": "perl-cryptx",
      "purl": "pkg:apk/alpine/perl-cryptx?arch=source",
      "ecosystem": "Alpine:v3.24"
    },
    "database_specific": {
      "source": "https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-41564.json"
    },
    "ecosystem_specific": {}
  }
]

Publisher severity

No explicit severity was provided.

Event
#54361 · Revision 1
Added to Heist Feed
Publisher date
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