guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Prior to 2.12.3, Uri::assertValidHost() does not reject URI host components containing authority delimiters, embedded ports, or malformed IPv6 brackets, allowing Uri::getHost() to disagree with the URI authority used for security or routing decisions. This issue is fixed in version 2.12.3.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-51116fe081 advisory.

    34.0.2 Release

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

Note that Nessus has not tested for these issues 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 multiple vulnerabilities as referenced in the FEDORA-2026-df06189438 advisory.

    34.0.2 Release

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

Note that Nessus has not tested for these issues 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.

  - guzzlehttp/psr7 is a PSR-7 HTTP message library implementation in PHP. Prior to 2.12.3,     Uri::assertValidHost() does not reject URI host components containing authority delimiters, embedded     ports, or malformed IPv6 brackets, allowing Uri::getHost() to disagree with the URI authority used for     security or routing decisions. This issue is fixed in version 2.12.3. (CVE-2026-59882)

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

ID	Name	Product	Family	Type	Severity
331600	Fedora 43 : nextcloud (2026-51116fe081)	Nessus	Fedora Local Security Checks	Local	medium
331520	Fedora 44 : nextcloud (2026-df06189438)	Nessus	Fedora Local Security Checks	Local	medium
325842	Linux Distros Unpatched Vulnerability : CVE-2026-59882	Nessus	Misc.	Local	medium

Detections

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CVE-2026-59882

medium

Tenable Plugins

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medium

medium