6.1

CVE-2026-41650: naturalintelligence fast-xml-parser

CVSS: 6.1v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-41650DEBIAN-CVE-2026-41650CGA-2v9w-62cm-c2r5
Published 07-05-2026Last modified 07-05-2026
Open JSON

Vulnerability summary

CVE-2026-41650 is a medium (CVSS 6.1) vulnerability in naturalintelligence fast-xml-parser. EPSS estimates a 0.27% chance of exploitation in the next 30 days, higher than 18.3% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.27%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1 · Related 2
OPENSUSE-SU-2026:12070-1CGA-4V67-J4WV-J2JF

Timeline

  1. 07-05-2026
    PublishedVulnerability first disclosed.
  2. 07-05-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

0.27%

Chance of exploitation in the next 30 days

Percentile

18%

Versus all other CVEs

30-day change

+0.03 pp

From 0.24% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.27%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Fast Xml Parser

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Chainguard28 products
  • airflow-2All versions (No fix recorded)
  • airflow-core-2All versions (No fix recorded)
  • kibana-8.19< 8.19.14-r5
  • kibana-8.19-bitnami< 8.19.14-r6 | < 8.19.14-r5
  • kibana-8.19-iamguarded< 8.19.14-r6 | < 8.19.14-r5
Wolfi8 products
  • kubeflow-pipelines-frontend< 2.16.0-r19
  • langfuse-3< 3.164.0-r8
  • langfuse-3-worker< 3.164.0-r8
  • opensearch-dashboards-3< 3.6.0-r3
  • prism< 5.15.10-r0
Debian1 product
  • node-webfontAll versions (No fix recorded)
Naturalintelligence1 product
Npm1 product
  • fast-xml-parser< 5.7.0
Ubuntu1 product
  • node-webfontAll versions (No fix recorded)

6 vendors · 40 products

References

8 links