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    2 vulnerabilities by CROMEDOME

    CVE-2026-13577 (GCVE-0-2026-13577)

    Vulnerability from nvd – Published: 2026-07-20 07:11 – Updated: 2026-07-22 12:00
    VLAI
    Title
    Dancer2 versions through 2.1.0 for Perl generate insecure session ids when required CSPRNG modules are unavailable
    Summary
    Dancer2 versions through 2.1.0 for Perl generate insecure session ids when required CSPRNG modules are unavailable. Dancer2::Core::Role::SessionFactory::generate_id silently falls back to a built-in rand-derived session id unless both Math::Random::ISAAC::XS and Crypt::URandom are available. The fallback session id is generated from a SHA-1 hash of a call to the built-in rand function, the absolute path of the Dancer2::Core::Role::SessionFactory module, an internal counter, the process id, the module instance memory address, and a shuffled string of characters (using the List::Util::shuffle function, which also uses the built-in rand function). These are all low-entropy and easily guessed sources. The built-in rand() function is seeded with 32-bits and considered unsuitable for security applications. Predictable session ids could allow an attacker to gain access to systems.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-340 - Generation of Predictable Numbers or Identifiers
    • CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator
    Assigner
    Impacted products
    Vendor Product Version
    CROMEDOME Dancer2 Affected: 0 , ≤ 2.1.0 (custom)
    Create a notification for this product.
    Show details on NVD website

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    CVE-2026-13577 (GCVE-0-2026-13577)

    Vulnerability from cvelistv5 – Published: 2026-07-20 07:11 – Updated: 2026-07-22 12:00
    VLAI
    Title
    Dancer2 versions through 2.1.0 for Perl generate insecure session ids when required CSPRNG modules are unavailable
    Summary
    Dancer2 versions through 2.1.0 for Perl generate insecure session ids when required CSPRNG modules are unavailable. Dancer2::Core::Role::SessionFactory::generate_id silently falls back to a built-in rand-derived session id unless both Math::Random::ISAAC::XS and Crypt::URandom are available. The fallback session id is generated from a SHA-1 hash of a call to the built-in rand function, the absolute path of the Dancer2::Core::Role::SessionFactory module, an internal counter, the process id, the module instance memory address, and a shuffled string of characters (using the List::Util::shuffle function, which also uses the built-in rand function). These are all low-entropy and easily guessed sources. The built-in rand() function is seeded with 32-bits and considered unsuitable for security applications. Predictable session ids could allow an attacker to gain access to systems.
    SSVC
    Exploitation: none Automatable: yes Technical Impact: partial
    CISA Coordinator (v2.0.3)
    CWE
    • CWE-340 - Generation of Predictable Numbers or Identifiers
    • CWE-338 - Use of Cryptographically Weak Pseudo-Random Number Generator
    Assigner
    Impacted products
    Vendor Product Version
    CROMEDOME Dancer2 Affected: 0 , ≤ 2.1.0 (custom)
    Create a notification for this product.
    Show details on NVD website

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