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Withdrawn: CLEANSTART-2026-AD27625 — Security fixes for CVE-2022-25881, CVE-2022-33987, CVE-2025-25285, CVE-2025-62718, CVE-2025-69873, CVE-2026-21637, CVE-…

Withdrawn by the publisher.

Affected: CleanStart: mongosh

Multiple security vulnerabilities affect the mongosh package. These issues are resolved in later releases. See references for individual vulnerability details.

EUVD-2026-309050

fkie_cve-2026-41650

fast-xml-parser allows users to process XML from JS object without C/C++ based libraries or callbacks. Prior to version 5.7.0, XMLBuilder does not escape the "-->" sequence in comment content or the "]]>" sequence in CDATA sections when building XML from JavaScript objects. This allows XML injection when user-controlled data flows into comments or CDATA elements, leading to XSS, SOAP injection, or data manipulation. This issue has been patched in version 5.7.0.

GHSA-gh4j-gqv2-49f6 — fast-xml-parser XMLBuilder: XML Comment and CDATA Injection via Unescaped Delimiters

Affected: npm: fast-xml-parser

# fast-xml-parser XMLBuilder: Comment and CDATA Injection via Unescaped Delimiters

## Summary

fast-xml-parser XMLBuilder does not escape the `-->` sequence in comment content or the `]]>` sequence in CDATA sections when building XML from JavaScript objects. This allows XML injection when user-controlled data flows into comments or CDATA elements, leading to XSS, SOAP injection, or data manipulation.

Existing CVEs for fast-xml-parser cover different issues: - CVE-2023-26920: Prototype pollution (parser) - CVE-2023-34104: ReDoS (parser) - CVE-2026-27942: Stack overflow in XMLBuilder with preserveOrder - CVE-2026-25896: Entity encoding bypass via regex in DOCTYPE entities

This finding covers **unescaped comment/CDATA delimiters in XMLBuilder** - a distinct vulnerability.

## Vulnerable Code

**File**: `src/fxb.js`

```javascript // Line 442 - Comment building with NO escaping of --> buildTextValNode(val, key, attrStr, level) { // ... if (key === this.options.commentPropName) { return this.indentate(level) + `` + this.newLine; // VULNERABLE } // ... if (key === this.options.cdataPropName) { return this.indentate(level) + `<![CDATA[${val}]]>` + this.newLine; // VULNERABLE } } ```

Compare with attribute/text escaping which IS properly handled via `replaceEntitiesValue()`.

## Proof of Concept

### Test 1: Comment Injection (XSS in SVG/HTML context)

```javascript import { XMLBuilder } from 'fast-xml-parser';

const builde…

RHSA-2026:56431 — Red Hat Security Advisory: Red Hat OpenShift Data Foundation 4.18.27 security, enhancement & bug fix update

golang: net/url: Memory exhaustion in query parameter parsing in net/url crypto/x509: golang: Denial of Service due to excessive resource consumption via crafted certificate js-yaml: js-yaml prototype pollution in merge react-router: React Router unexpected external redirect undici: Undici: HTTP Request Smuggling and Denial of Service due to duplicate Content-Length headers undici: undici: Denial of Service via unbounded memory consumption during WebSocket permessage-deflate decompression undici: Undici: HTTP header injection and request smuggling vulnerability undici: Undici: Denial of Service via invalid WebSocket permessage-deflate extension parameter fast-uri: fast-uri: Path traversal vulnerability allows bypass of security policies fast-uri: fast-uri: URI authority bypass due to improper delimiter handling undici: Undici: Response queue poisoning on reused keep-alive sockets can lead to incorrect response delivery. undici: undici: Information disclosure and data integrity issues due to incorrect Socks5ProxyAgent connection routing postcss-selector-parser: Postcss: Denial of Service via uncontrolled recursion in AST Serialization undici: undici vulnerable to HTTP header injection via Set-Cookie percent-decoding undici: undici: Man-in-the-Middle attack via ignored TLS options with SOCKS5 proxy undici: undici: Weakening of cookie SameSite policy due to incorrect parsing of Set-Cookie header form-data: form-data: Form field override via CRLF injection undici: undici: Denial…

UBUNTU-CVE-2026-41650

Affected: Ubuntu:24.04:LTS: node-webfont, Ubuntu:25.10: node-webfont, Ubuntu:26.04:LTS: node-webfont

WID-SEC-W-2026-1654 — IBM App Connect Enterprise: Mehrere Schwachstellen

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in IBM App Connect Enterprise ausnutzen, um beliebigen Programmcode auszuführen, Daten zu manipulieren, Cross-Site-Scripting-Angriffe durchzuführen, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand auszulösen.