Handlebars provides the power necessary to let users build semantic templates. In versions 4.0.0 through 4.7.8, `resolvePartial()` in the Handlebars runtime resolves partial names via a plain property lookup on `options.partials` without guarding against prototype-chain traversal. When `Object.prototype` has been polluted with a string value whose key matches a partial reference in a template, the polluted string is used as the partial body and rendered without HTML escaping, resulting in reflected or stored XSS. Version 4.7.9 fixes the issue. Some workarounds are available. Apply `Object.freeze(Object.prototype)` early in application startup to prevent prototype pollution. Note: this may break other libraries, and/or use the Handlebars runtime-only build (`handlebars/runtime`), which does not compile templates and reduces the attack surface.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-6599e30e04 advisory.

    33.0.3 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-cb5661d883 advisory.

    33.0.3 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 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-2fed8dd674 advisory.

    33.0.3 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 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-ca43aa006f advisory.

    33.0.1 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.

  - Handlebars provides the power necessary to let users build semantic templates. In versions 4.0.0 through     4.7.8, `resolvePartial()` in the Handlebars runtime resolves partial names via a plain property lookup on     `options.partials` without guarding against prototype-chain traversal. When `Object.prototype` has been     polluted with a string value whose key matches a partial reference in a template, the polluted string is     used as the partial body and rendered without HTML escaping, resulting in reflected or stored XSS. Version     4.7.9 fixes the issue. Some workarounds are available. Apply `Object.freeze(Object.prototype)` early in     application startup to prevent prototype pollution. Note: this may break other libraries, and/or use the     Handlebars runtime-only build (`handlebars/runtime`), which does not compile templates and reduces the     attack surface. (CVE-2026-33916)

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

ID	Name	Product	Family	Severity
313733	Fedora 43 : nextcloud (2026-6599e30e04)	Nessus	Fedora Local Security Checks	medium
313662	Fedora 44 : nextcloud (2026-cb5661d883)	Nessus	Fedora Local Security Checks	medium
313661	Fedora 42 : nextcloud (2026-2fed8dd674)	Nessus	Fedora Local Security Checks	medium
305115	Fedora 42 : nextcloud (2026-ca43aa006f)	Nessus	Fedora Local Security Checks	high
304162	Linux Distros Unpatched Vulnerability : CVE-2026-33916	Nessus	Misc.	medium

Detections

Analytics

CVE-2026-33916

medium

Tenable Plugins

medium

medium

medium

high

medium