unicodedata.normalize() can take excessive CPU time when processing specially crafted Unicode input containing long runs of combining characters with alternating Canonical Combining Class values. This affects all normalization forms.

The remote Fedora 44 host has packages installed that are affected by multiple vulnerabilities as referenced in the FEDORA-2026-a2c583a4ab advisory.

    New Python release including bugfixes and security fixes.

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-dfc9182263 advisory.

    New Python version including bugfixes and security fixes.

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 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-2deb979d80 advisory.

    New Python release including bugfixes and security fixes.

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.

  - unicodedata.normalize() can take excessive CPU time when processing specially crafted Unicode input     containing long runs of combining characters with alternating Canonical Combining Class values. This     affects all normalization forms. (CVE-2026-3276)

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

ID	Name	Product	Family	Severity
322120	Fedora 44 : python3-docs / python3.14 (2026-a2c583a4ab)	Nessus	Fedora Local Security Checks	medium
321848	Fedora 44 : python3.13 (2026-dfc9182263)	Nessus	Fedora Local Security Checks	critical
321844	Fedora 43 : python3.13 (2026-2deb979d80)	Nessus	Fedora Local Security Checks	critical
318548	Linux Distros Unpatched Vulnerability : CVE-2026-3276	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-3276

medium

Tenable Plugins

medium

critical

critical

medium