CVE•Published 2026-06-10•Modified 2026-07-23•0 articles on news•4 live references•NVD data
CVE-2026-42462
Vulnerability data via NVD (ingested)
CVSS v3.1
7.0
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:L
EPSS percentile
7
Exploit Prediction Scoring System · top 93% of all CVEs
Weaknesses (CWE)
Description
Fedify is a TypeScript library for building federated server apps powered by ActivityPub. Prior to versions 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3, an attacker can make use of JSON-LD features to restructure a JSON-LD document that would change how Fedify interprets it without changing its Linked Data Signature, allowing them to alter a third-party signed activity they have received. Versions 1.9.11, 1.10.10, 2.0.18, 2.1.14, and 2.2.3 fix the issue.
Timeline
Published 2026-06-10
Modified 2026-07-23
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.
More intel sources (5)
Shodan report
vuln:CVE-2026-42462Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-42462Censys host search filtered to this CVE id.
grep.app
CVE-2026-42462Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-42462GitHub code search for direct mentions.
Google dork
"CVE-2026-42462" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-42462 on GitHub.
We haven't classified any articles referencing CVE-2026-42462 yet. The external references above still apply.