fast-uri versions 2.3.1 through 3.1.2 and 4.0.0 fail to canonicalize Unicode (IDN) hostnames for HTTP-family URLs. The IDN conversion path calls a helper that does not exist on the global URL constructor, silently leaving the host in its original Unicode form while normalize() and equal() still return values that differ from a WHATWG-compatible URL parser. Applications that use fast-uri to enforce host-based policy (denylists, loopback filtering, redirect validation, outbound proxy routing) before passing the same URL to Node's URL or fetch can be bypassed when the two implementations resolve the same input to different hosts. Patches: upgrade to fast-uri 3.1.3 for the 3.x line or 4.0.1 for the 4.x line. Workarounds: enforce host policy using the same URL parser used for the actual request, or reject non-ASCII hosts before policy checks.

atlassian_confluence CONFSERVER-104501: SSRF (Server-Side Request Forgery) fast-uri Dependency in Confluence Data Center

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.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-3942ab86fd advisory.

    See https://github.com/jupytext/jupytext/blob/main/CHANGELOG.md for changes in versions 1.19.5 and 1.19.6.
    For this update, a patch has been applied that reverses the jupyterlab  jupyter-builder change for     Fedora releases  45, since jupyter-builder is only available in F46 and later.  Many CVEs have been     fixed in this 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.

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

  - fast-uri versions 2.3.1 through 3.1.2 and 4.0.0 fail to canonicalize Unicode (IDN) hostnames for HTTP-
    family URLs. The IDN conversion path calls a helper that does not exist on the global URL constructor,
    silently leaving the host in its original Unicode form while normalize() and equal() still return values
    that differ from a WHATWG-compatible URL parser. Applications that use fast-uri to enforce host-based
    policy (denylists, loopback filtering, redirect validation, outbound proxy routing) before passing the
    same URL to Node's URL or fetch can be bypassed when the two implementations resolve the same input to
    different hosts. Patches: upgrade to fast-uri 3.1.3 for the 3.x line or 4.0.1 for the 4.x line.
    Workarounds: enforce host policy using the same URL parser used for the actual request, or reject non-
    ASCII hosts before policy checks. (CVE-2026-13676)

The remote Redhat Enterprise Linux 10 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2026:57590 advisory.

    Red Hat build of Podman Desktop is a graphical tool for managing containers using Podman. It allows users     to run, manage, and configure containers and container images using a desktop GUI.

    Security Fix(es):

    * github.com/go-jose/go-jose/v3: github.com/go-jose/go-jose/v4: Go JOSE: Denial of Service via crafted     JSON Web Encryption (JWE) object (CVE-2026-34986)

    * ip-address: ip-address: Cross-site scripting via improper HTML escaping of untrusted input     (CVE-2026-42338)

    * protobufjs: protobufjs: Denial of Service via crafted JSON descriptors (CVE-2026-45740)

    * ws: ws: Uninitialized memory disclosure via `websocket.close()` with `TypedArray` (CVE-2026-45736)

    * devalue: devalue: Excessive memory consumption via deserialization of sparse arrays (CVE-2026-42570)

    * tmp: path Traversal via unsanitized prefix/postfix enables directory escape (CVE-2026-44705)

    * form-data: form-data: Form field override via CRLF injection (CVE-2026-12143)

    * webpack-dev-server: webpack-dev-server: Information disclosure and denial of service via improper proxy     configuration (CVE-2026-9595)

    * ws: ws: Denial of Service via memory exhaustion from small WebSocket fragments (CVE-2026-48779)

    * extract-zip: github.com/maxogden/extract-zip: extract-zip: Arbitrary file write and information     disclosure via symlink validation bypass (CVE-2026-56876)

    * fast-uri: fast-uri: Security policy bypass due to improper Unicode hostname canonicalization     (CVE-2026-13676)

    * brace-expansion: Brace-expansion: Denial of Service due to exponential-time complexity (CVE-2026-13149)

    * tar: Node-tar: Denial of Service via malformed tar archive header (CVE-2026-59874)

    * tar: node-tar: Denial of Service via crafted gzip bomb (CVE-2026-59873)

    * js-yaml: js-yaml: Denial of Service via crafted YAML documents (CVE-2026-59869)

    * protobufjs: protobufjs: Denial of Service via crafted .proto schema (CVE-2026-59877)

    * grpc-js: @grpc/grpc-js: Server crash via malformed HTTP/2 stream initiation (CVE-2026-48068)

    * linkify-it: linkify-it: Denial of Service via algorithmic complexity vulnerability (CVE-2026-48801)

    * dompurify: DOMPurify: Cross-site scripting vulnerability allows code execution (CVE-2026-49978)

    * brace-expansion: Brace-expansion: Denial of Service via memory exhaustion in expand() function     (CVE-2026-14257)

    * postcss: PostCSS: Information disclosure and denial of service via crafted CSS input (CVE-2026-45623)

    * postcss: PostCSS: Information disclosure via crafted sourceMappingURL (CVE-2026-69153)

    * brace-expansion: DoS via unbounded intermediate arrays, bypassing the CVE-2026-14257 mitigation     (CVE-2026-69152)

    * ip-address: ip-address: Inconsistent IP address parsing leads to Server-Side Request Forgery (SSRF) and     trust-boundary bypass (CVE-2026-69192)

    Bug Fix(es) and Enhancement(s):

    * Release RH Podman Desktop 1.1.2 to RHEL 10.2 Extensions (JIRA:RHEL-238929)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux 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 openSUSE 16 host has a package installed that is affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21448-1 advisory.

    - CVE-2025-7783: form-data: unsafe `Math.random()` function is used to select a boundary value for     multipart       form-encoded data (bsc#1246822).
    - CVE-2026-12143: form-data: CRLF injection via unescaped multipart field names and filenames     (bsc#1272310).
    - CVE-2026-13149: brace-expansion: `expand()` function exhibits exponential-time complexity when     processing       non-expanding `{}` brace groups (bsc#1269927).
    - CVE-2026-13311: shell-quote: quadratic complexity in `parse()` function when processing specially     crafted strings       (bsc#1269359).
    - CVE-2026-13676: fast-uri: host-based policy bypass due to failure to canonicalize Unicode/IDN hostnames     for       HTTP-family URLs (bsc#1269595).
    - CVE-2026-27601: underscore: DoS via stack overflow due to missing depth limits in `_.flatten` and     `_.isEqual`       functions (bsc#1259169).
    - CVE-2026-40181: react-router: open redirect to an external domain due to path values starting with `//`     being       reinterpreted as protocol-relative URLs (bsc#1272311).
    - CVE-2026-49356: @babel/core: arbitrary file read via `sourceMappingURL` comment (bsc#1272317).
    - CVE-2026-53550: js-yaml: quadratic complexity in merge-key processing when processing a crafted YAML     document       (bsc#1268851).
    - CVE-2026-53632: launch-editor: NTLMv2 hash disclosure via UNC path handling on Windows (bsc#1272319).
    - CVE-2026-54466: websocket-driver: message corruption via abuse of protocol length headers (bsc#1272312).
    - CVE-2026-54490: websocket-driver: resource limit bypass via message compression (bsc#1272313).
    - CVE-2026-55602: http-proxy-middleware: Host-header-driven backend routing bypass via `router` host+path     substring       matching (bsc#1272318).

Tenable has extracted the preceding description block directly from the SUSE 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 openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:21231-1 advisory.

    Changes in python-pydata-sphinx-theme:

    - CVE-2026-13676: fast-uri: failure to canonicalize Unicode/IDN       hostnames for HTTP-family URLs allows for bypass (bsc#1269597)
      * revendor the vendored tarball with updated versions

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue 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.

  - fast-uri versions 2.3.1 through 3.1.2 and 4.0.0 fail to canonicalize Unicode (IDN) hostnames for HTTP-     family URLs. The IDN conversion path calls a helper that does not exist on the global URL constructor,     silently leaving the host in its original Unicode form while normalize() and equal() still return values     that differ from a WHATWG-compatible URL parser. Applications that use fast-uri to enforce host-based     policy (denylists, loopback filtering, redirect validation, outbound proxy routing) before passing the     same URL to Node's URL or fetch can be bypassed when the two implementations resolve the same input to     different hosts. Patches: upgrade to fast-uri 3.1.3 for the 3.x line or 4.0.1 for the 4.x line.
    Workarounds: enforce host policy using the same URL parser used for the actual request, or reject non-     ASCII hosts before policy checks. (CVE-2026-13676)

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

ID	Name	Product	Family	Type	Severity
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
365513	Fedora 43 : python-jupytext (2026-3942ab86fd)	Nessus	Fedora Local Security Checks	Local	high
462556	Echo: fast-uri: security update to 3.1.2+echo.1	Tenable Cloud Security	Echo Local Security Checks	Local	high
462556	Echo: fast-uri: security update to 3.1.2+echo.1	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	high
338414	RHEL 10 : rh-podman-desktop (RHSA-2026:57590)	Nessus	Red Hat Local Security Checks	Local	critical
330583	openSUSE 16 Security Update : agama-web-ui (openSUSE-SU-2026:21448-1)	Nessus	SuSE Local Security Checks	Local	critical
445121	SCA: security update for fast-uri (GHSA-4c8g-83qw-93j6)	Tenable Cloud Security	SCA Checks	Local	high
445121	SCA: security update for fast-uri (GHSA-4c8g-83qw-93j6)	Tenable Self-Hosted Container Security	SCA Checks	Local	high
325130	openSUSE 16 Security Update : python-pydata-sphinx-theme (openSUSE-SU-2026:21231-1)	Nessus	SuSE Local Security Checks	Local	high
323932	Linux Distros Unpatched Vulnerability : CVE-2026-13676	Nessus	Misc.	Local	high

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