CVE•Published 2026-08-12•Modified 2026-09-09•1 article on news•5 live references•NVD data
CVE-2026-73299
Vulnerability data via NVD (ingested)
CVSS v3.1
10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
EPSS percentile
66
Exploit Prediction Scoring System · top 34% of all CVEs
Weaknesses (CWE)
Description
Prompty is a markdown file format (.prompty) for LLM prompts. Prior to 0.1.5 and 2.0.0-beta.5, the TypeScript Nunjucks renderer evaluated untrusted .prompty template bodies with unrestricted JavaScript member access. An attacker-controlled template could traverse constructor and prototype properties to execute JavaScript in the host Node.js process. This issue is fixed in versions 0.1.5 and 2.0.0-beta.5.
Timeline
Published 2026-08-12
Modified 2026-09-09
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).
More intel sources (5)
Shodan report
vuln:CVE-2026-73299Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-73299Censys host search filtered to this CVE id.
grep.app
CVE-2026-73299Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-73299GitHub code search for direct mentions.
Google dork
"CVE-2026-73299" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.