PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules into an Abstract Syntax Tree. Prior to 8.5.18, lib/previous-map.js loadMap() passes attacker-controlled sourceMappingURL values to join(dirname(opts.from), annotation), and loadFile() permits traversed or absolute .map paths, allowing untrusted CSS processed without map: false to disclose sourcesContent from arbitrary reachable .map files through result.map. This issue is fixed in version 8.5.18.

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-104519 advisory.

  - PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules     into an Abstract Syntax Tree. Prior to 8.5.18, lib/previous-map.js loadMap() passes attacker-controlled     sourceMappingURL values to join(dirname(opts.from), annotation), and loadFile() permits traversed or     absolute .map paths, allowing untrusted CSS processed without map: false to disclose sourcesContent from     arbitrary reachable .map files through result.map. This issue is fixed in version 8.5.18. (CVE-2026-73646)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to its self-reported version number, the Atlassian Crowd application running on the remote host is prior to 7.2.3. It is, therefore, affected by multiple vulnerabilities, including flaws in bundled third-party dependencies :

- Multiple denial of service vulnerabilities in the bundled Apache Tomcat dependency. (CVE-2026-58059, CVE-2026-13506)

- Multiple broken authentication and session management vulnerabilities in the bundled Bouncy Castle dependency. (CVE-2026-12803, CVE-2026-59639, CVE-2026-59642, CVE-2026-12802, CVE-2026-12816)

- A remote code execution vulnerability in the bundled form-data dependency. (CVE-2026-12143)

- Multiple remote code execution vulnerabilities in the bundled Bouncy Castle dependency. (CVE-2026-58060, CVE-2026-14682)

- Multiple denial of service vulnerabilities in the bundled nanoid dependency. (CVE-2026-67214, CVE-2026-67213)

- A file inclusion vulnerability in the bundled postcss dependency. (CVE-2026-73646)

- A denial of service vulnerability in the bundled Netty dependency. (CVE-2026-73507)

- A cross-site request forgery (CSRF) vulnerability in the bundled nanoid dependency. (CVE-2026-73086)

- A broken authentication and session management vulnerability in the bundled Apache Tomcat dependency. (CVE-2026-53404)

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

According to its self-reported version number, the Atlassian Jira application running on the remote host is prior to 10.3.25 or 10.4.x prior to 11.3.11. It is, therefore, affected by multiple vulnerabilities, including flaws in bundled third-party dependencies :

- Multiple broken authentication and session management vulnerabilities in the bundled Bouncy Castle dependency. (CVE-2026-8763, CVE-2026-12803, CVE-2026-12802, CVE-2026-12816, CVE-2026-59642, CVE-2026-59639)

- An injection vulnerability in the bundled Bouncy Castle dependency. (CVE-2026-59650)

- Multiple broken authentication and session management vulnerabilities in the bundled Apache Tomcat dependency. (CVE-2026-53434, CVE-2026-55276, CVE-2026-53404)

- An injection vulnerability in the bundled json5 dependency. (CVE-2022-46175)

- Multiple denial of service vulnerabilities in the bundled Apache Tomcat dependency. (CVE-2026-58059, CVE-2026-13506, CVE-2026-68763)

- Multiple cross-site scripting (XSS) vulnerabilities in the bundled tinymce dependency. (CVE-2026-47761, CVE-2026-47759, CVE-2026-47762)

- Multiple remote code execution vulnerabilities in the bundled Bouncy Castle dependency. (CVE-2026-14682, CVE-2026-58060)

- Multiple denial of service vulnerabilities in the bundled Immutable.js dependency. (CVE-2026-59880, CVE-2026-59879)

- An information disclosure vulnerability in the bundled axios dependency. (CVE-2026-67320)

- A remote code execution vulnerability in the bundled @babel/plugin-transform-modules-systemjs dependency. (CVE-2026-44728)

- A denial of service vulnerability in the bundled nanoid dependency. (CVE-2026-67214)

- A broken authentication and session management vulnerability in the bundled jackson-databind dependency. (CVE-2026-54513)

- A denial of service vulnerability in the bundled jackson-databind dependency. (CVE-2026-54512)

- A denial of service vulnerability in the bundled Netty dependency. (CVE-2026-73507)

- Multiple server-side request forgery (SSRF) vulnerabilities in the bundled fast-uri dependency. (CVE-2026-75899, CVE-2026-75975, CVE-2026-76172)

- Multiple denial of service vulnerabilities in the bundled browserslist dependency. (CVE-2026-73088, CVE-2026-73089)

- A denial of service vulnerability in the bundled js-yaml dependency. (CVE-2026-59869)

- Multiple denial of service vulnerabilities in the bundled brace-expansion dependency. (CVE-2026-14257, CVE-2026-69152)

- A file inclusion vulnerability in the bundled postcss dependency. (CVE-2026-73646)

- Multiple injection vulnerabilities in the bundled fast-uri dependency. (CVE-2026-13676, CVE-2026-16221, CVE-2026-18446)

- A denial of service vulnerability in the bundled node-tar dependency. (CVE-2026-73566)

- A cross-site request forgery (CSRF) vulnerability in the bundled nanoid dependency. (CVE-2026-73086)

Note that the scanner has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules
    into an Abstract Syntax Tree. Prior to 8.5.18, lib/previous-map.js loadMap() passes attacker-controlled
    sourceMappingURL values to join(dirname(opts.from), annotation), and loadFile() permits traversed or
    absolute .map paths, allowing untrusted CSS processed without map: false to disclose sourcesContent from
    arbitrary reachable .map files through result.map. This issue is fixed in version 8.5.18. (CVE-2026-73646)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - PostCSS takes a CSS file and provides an API to analyze and modify its rules by transforming the rules     into an Abstract Syntax Tree. Prior to 8.5.18, lib/previous-map.js loadMap() passes attacker-controlled     sourceMappingURL values to join(dirname(opts.from), annotation), and loadFile() permits traversed or     absolute .map paths, allowing untrusted CSS processed without map: false to disclose sourcesContent from     arbitrary reachable .map files through result.map. This issue is fixed in version 8.5.18. (CVE-2026-73646)

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

ID	Name	Product	Family	Type	Severity
368962	Atlassian Confluence < 9.2.22 / 9.3.x < 10.2.19 / 11.0.0 (CONFSERVER-104519)	Nessus	CGI abuses	Combined	high
115705	Atlassian Crowd < 7.2.3 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	Version Based	high
115698	Atlassian Jira 10.4.x < 11.3.11 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	Version Based	critical
115697	Atlassian Jira < 10.3.25 Multiple Vulnerabilities	Web App Scanning	Component Vulnerability	Version Based	critical
463932	Echo: postcss: security update to 8.5.18	Tenable Cloud Security	Echo Local Security Checks	Local	high
463932	Echo: postcss: security update to 8.5.18	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
337160	Linux Distros Unpatched Vulnerability : CVE-2026-73646	Nessus	Misc.	Local	high

Detections

Analytics

CVE-2026-73646

high

Tenable Plugins

high

high

critical

critical

high

high

high