CVE-2026-41650General(naturalintelligence / fast-xml-parser)

LOWCVSS 6.1 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-91

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • fast-xml-parser

Threat summary

  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • Disclosure: 1 classified signal
  • Peaked 1d ago at 1 mentions (2026-04-23); latest day: 1
  • 2 total mentions across 2 days

Affected systems

Products
fast-xml-parser

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-04-23: 1Mentions · 2026-05-08: 1Technical Details · 2026-05-08: 104-2305-08
Signal classification2 categories
General
150.0%
Disclosure
150.0%
Referenced assets2 URLs
Classification over time
DateTotalLabels
2026-04-231
General1
2026-05-081
Disclosure1
Full discourse2 posts
  • DailyCVE@dailycve
    Disclosure

    🟠 fast-xml-parser, XML Injection, #CVE-2026-41650 (Moderate) https://dailycve.com/fast-xml-parser-xml-injection-cve-2026-41650-moderate/

    Post summary

    The tweet announces a moderate‑severity XML Injection vulnerability (CVE‑2026‑41650) in fast‑xml‑parser and links to an article for further details.

    0000027
    198 followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-41650 This manual is available in multiple languages Note🌐 Available in https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-41650

    Post summary

    The content cites CVE-2026-41650 and links to a vulnerability details page, but provides no substantive technical, exploit, or mitigation information.

    0000056
    4.0K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appnaturalintelligencefast-xml-parser---

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