CVE•Published 2026-08-28•Modified 2026-09-08•1 article on news•4 live references•NVD data
CVE-2026-82021
Vulnerability data via NVD (ingested)
CVSS v3.1
8.3
HIGH
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
EPSS percentile
13
Exploit Prediction Scoring System · top 87% of all CVEs
Weaknesses (CWE)
Description
Hermes Agent 0.18.2 prior to 0.19.0 contains a supply chain vulnerability in its bundled MCP catalog that allows a remote attacker to execute arbitrary code by compromising a third-party upstream repository referenced via a mutable branch rather than a pinned commit SHA. An attacker who compromises the upstream repository can propagate malicious code to every host that installs the affected catalog entry, with no further action required by the operator.
Timeline
Published 2026-08-28
Modified 2026-09-08
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-2026-82021Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-82021Censys host search filtered to this CVE id.
grep.app
CVE-2026-82021Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-82021GitHub code search for direct mentions.
Google dork
"CVE-2026-82021" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.