Data::Entropy versions before 0.010 for Perl read remote entropy sources over plain HTTP. The Data::Entropy::RawSource::RandomOrg and Data::Entropy::RawSource::RandomnumbersInfo remote sources are accessed over plain HTTP. The Data::Entropy::RawSource::RandomOrg integrity check trivially matches any non-empty byte string. Any on-path attacker, such as open WiFi, a compromised ISP, captive portal, or a hostile egress proxy substitutes the response and thereby chooses the bytes returned by rand_bits and rand_int for every application that selected one of these sources via with_entropy_source. The _checkbuf method response is equally attacker-controlled, so the retry/sleep behaviour is steerable too.

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-8924ee53fe advisory.

    Data::Entropy versions before 0.010 for Perl read remote entropy sources over plain HTTP. This update     fixes that issue (CVE-2026-18536).

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 45 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-f234be41fe advisory.

    Data::Entropy versions before 0.010 for Perl read remote entropy sources over plain HTTP. This update     fixes that issue (CVE-2026-18536).

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-2026-2c6e5be623 advisory.

    Data::Entropy versions before 0.010 for Perl read remote entropy sources over plain HTTP. This update     fixes that issue (CVE-2026-18536).

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.

  - Data::Entropy versions before 0.010 for Perl read remote entropy sources over plain HTTP. The     Data::Entropy::RawSource::RandomOrg and Data::Entropy::RawSource::RandomnumbersInfo remote sources are     accessed over plain HTTP. The Data::Entropy::RawSource::RandomOrg integrity check trivially matches any     non-empty byte string. Any on-path attacker, such as open WiFi, a compromised ISP, captive portal, or a     hostile egress proxy substitutes the response and thereby chooses the bytes returned by rand_bits and     rand_int for every application that selected one of these sources via with_entropy_source. The _checkbuf     method response is equally attacker-controlled, so the retry/sleep behaviour is steerable too.
    (CVE-2026-18536)

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

ID	Name	Product	Family	Type	Severity
345825	Fedora 43 : perl-Data-Entropy (2026-8924ee53fe)	Nessus	Fedora Local Security Checks	Local	high
345756	Fedora 45 : perl-Data-Entropy (2026-f234be41fe)	Nessus	Fedora Local Security Checks	Local	high
345753	Fedora 44 : perl-Data-Entropy (2026-2c6e5be623)	Nessus	Fedora Local Security Checks	Local	high
331613	Linux Distros Unpatched Vulnerability : CVE-2026-18536	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-18536

high

Tenable Plugins

high

high

high

high