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. In versions 8.5.11 and prior, the PreviousMap parses the /*#
    sourceMappingURL=PATH */ comment from any CSS string passed to process() and dereferences PATH against the
    local filesystem with no scheme, allowlist, or traversal check. An attacker who controls the CSS input can
    cause the host process to read any file readable by Node and leak the first ~10 bytes of its content
    through the resulting JSON.parse SyntaxError message. The bug also yields a precise file-existence oracle
    and a controllable-read primitive that may be combined with large-file targets for DoS. The behaviour is
    triggered with PostCSS's default options — no from, no map, no plugins required — and is therefore
    reachable from any pipeline that runs untrusted CSS through PostCSS (CMS themes, user-uploaded styles,
    browser-extension/userstyle processors, build pipelines for third-party packages, blog comment renderers,
    etc.). This issue has been fixed in version 8.5.12. (CVE-2026-45623)

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 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. In versions 8.5.11 and prior, the PreviousMap parses the /*#     sourceMappingURL=PATH */ comment from any CSS string passed to process() and dereferences PATH against the     local filesystem with no scheme, allowlist, or traversal check. An attacker who controls the CSS input can     cause the host process to read any file readable by Node and leak the first ~10 bytes of its content     through the resulting JSON.parse SyntaxError message. The bug also yields a precise file-existence oracle     and a controllable-read primitive that may be combined with large-file targets for DoS. The behaviour is     triggered with PostCSS's default options  no from, no map, no plugins required  and is therefore     reachable from any pipeline that runs untrusted CSS through PostCSS (CMS themes, user-uploaded styles,     browser-extension/userstyle processors, build pipelines for third-party packages, blog comment renderers,     etc.). This issue has been fixed in version 8.5.12. (CVE-2026-45623)

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

ID	Name	Product	Family	Published	Updated	Severity
445210	SCA: security update for postcss (GHSA-6g55-p6wh-862q)	Tenable Cloud Security	SCA Checks	7/23/2026	8/7/2026	critical
445210	SCA: security update for postcss (GHSA-6g55-p6wh-862q)	Tenable Self-Hosted Container Security	SCA Checks	7/23/2026	8/7/2026	critical
338414	RHEL 10 : rh-podman-desktop (RHSA-2026:57590)	Nessus	Red Hat Local Security Checks	8/20/2026	8/20/2026	critical
330382	Linux Distros Unpatched Vulnerability : CVE-2026-45623	Nessus	Misc.	7/28/2026	9/3/2026	critical

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