CVE•Published 2026-07-08•Modified 2026-07-13•0 articles on news•4 live references•NVD data
CVE-2026-59869Nodeca · Js-yaml
Vulnerability data via NVD (ingested)
CVSS v3.1
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS percentile
27
Exploit Prediction Scoring System · top 73% of all CVEs
Weaknesses (CWE)
Description
js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 before 3.15.0 and from 4.0.0 before 4.3.0, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in versions 3.15.0 and 4.3.0.
Timeline
Published 2026-07-08
Modified 2026-07-13
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.
Shodan · vuln tag
vuln:CVE-2026-59869Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Nodeca Js-yaml"All exposed Nodeca Js-yaml instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Js-yaml"HTTP body or banner mentions "Js-yaml" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-59869Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-59869Censys host search filtered to this CVE id.
grep.app
CVE-2026-59869Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-59869GitHub code search for direct mentions.
Google dork
"CVE-2026-59869" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-59869 on GitHub.
We haven't classified any articles referencing CVE-2026-59869 yet. The external references above still apply.