Tor before 0.4.9.12 interprets the CC_RESPONSE extension even when CC_REQUEST was not sent, which allows remote attackers to cause a denial of service (crash) because of corrupted congestion-control state. This is TROVE-2026-032.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-8a3e460f1e advisory.

    Update to latest upstream 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-f51af3db87 advisory.

    Update to latest upstream 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.

  - Tor before 0.4.9.12 interprets the CC_RESPONSE extension even when CC_REQUEST was not sent, which allows     remote attackers to cause a denial of service (crash) because of corrupted congestion-control state. This     is TROVE-2026-032. (CVE-2026-87724)

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

ID	Name	Product	Family	Type	Severity
366738	Fedora 43 : tor (2026-8a3e460f1e)	Nessus	Fedora Local Security Checks	Local	critical
366724	Fedora 44 : tor (2026-f51af3db87)	Nessus	Fedora Local Security Checks	Local	critical
344175	Linux Distros Unpatched Vulnerability : CVE-2026-87724	Nessus	Misc.	Local	medium

Detections

Analytics

CVE-2026-87724

medium

Tenable Plugins

critical

critical

medium