Guzzle is an extensible PHP HTTP client. Prior to 7.12.3, CookieJar did not restrict cookies scoped to IP-address or bare-numeric Domain values to the exact host that set them, because SetCookie::matchesDomain() applied ordinary suffix matching to domains such as 192.168.0.1, [::1], or 1, allowing cross-host cookie disclosure, cookie injection, or session fixation. This issue is fixed in version 7.12.3.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-625cbe86c8 advisory.

    34.0.3 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-a1368a72b4 advisory.

    34.0.3 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.

  - Guzzle is an extensible PHP HTTP client. Prior to 7.12.3, CookieJar did not restrict cookies scoped to IP-     address or bare-numeric Domain values to the exact host that set them, because SetCookie::matchesDomain()     applied ordinary suffix matching to domains such as 192.168.0.1, [::1], or 1, allowing cross-host cookie     disclosure, cookie injection, or session fixation. This issue is fixed in version 7.12.3. (CVE-2026-59883)

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

ID	Name	Product	Family	Type	Severity
339195	Fedora 43 : nextcloud (2026-625cbe86c8)	Nessus	Fedora Local Security Checks	Local	medium
339193	Fedora 44 : nextcloud (2026-a1368a72b4)	Nessus	Fedora Local Security Checks	Local	medium
325843	Linux Distros Unpatched Vulnerability : CVE-2026-59883	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-59883

medium

Tenable Plugins

medium

medium

medium