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.

amazon_alas ALAS2023-2026-1641: Amazon Linux 2023 Security Advisory:ALAS2023-2026-1641

The remote Fedora 42 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-bc5090f99b advisory.

    0.088   2026-04-23
            - Crypt::KeyDerivation - new functions: pbkdf1_openssl, bcrypt_pbkdf, scrypt_pbkdf, argon2_pbkdf
            - Crypt::Misc - new functions: random_v7uuid, is_uuid
            - bundled libtomcrypt update branch:develop (commit: 2e441a17 2026-04-15)
            - bundled libtommath update branch:develop (commit: ae40a87 2026-04-20)
            - security fix CVE-2026-41564 https://github.com/DCIT/perl-     CryptX/security/advisories/GHSA-24c2-gp6c-24c6

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-3e1f671a17 advisory.

    0.088   2026-04-23
            - Crypt::KeyDerivation - new functions: pbkdf1_openssl, bcrypt_pbkdf, scrypt_pbkdf, argon2_pbkdf
            - Crypt::Misc - new functions: random_v7uuid, is_uuid
            - bundled libtomcrypt update branch:develop (commit: 2e441a17 2026-04-15)
            - bundled libtommath update branch:develop (commit: ae40a87 2026-04-20)
            - security fix CVE-2026-41564 https://github.com/DCIT/perl-     CryptX/security/advisories/GHSA-24c2-gp6c-24c6

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-f533fcc0b6 advisory.

    0.088   2026-04-23
            - Crypt::KeyDerivation - new functions: pbkdf1_openssl, bcrypt_pbkdf, scrypt_pbkdf, argon2_pbkdf
            - Crypt::Misc - new functions: random_v7uuid, is_uuid
            - bundled libtomcrypt update branch:develop (commit: 2e441a17 2026-04-15)
            - bundled libtommath update branch:develop (commit: ae40a87 2026-04-20)
            - security fix CVE-2026-41564 https://github.com/DCIT/perl-     CryptX/security/advisories/GHSA-24c2-gp6c-24c6

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-41564)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
311775	Fedora 42 : perl-CryptX (2026-bc5090f99b)	Nessus	Fedora Local Security Checks	high
311732	Fedora 43 : perl-CryptX (2026-3e1f671a17)	Nessus	Fedora Local Security Checks	high
311731	Fedora 44 : perl-CryptX (2026-f533fcc0b6)	Nessus	Fedora Local Security Checks	high
309939	Linux Distros Unpatched Vulnerability : CVE-2026-41564	Nessus	Misc.	high

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