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  4. CVE 2026 71963 hermes agent 0182 0210 rce via git corefsmonitor
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Back to active CVEs
High · CVSS 8.8CVE-2026-71963

Hermes Agent 0.18.2 - 0.21.0 RCE via git core.fsmonitor Config InjectionCVE-2026-71963

Answer in brief

CVE-2026-71963 records a High severity (CVSS 8.8) vulnerability in Hermes Agent 0.18.2 - 0.21.0 RCE via git core.fsmonitor Config Injection. The current sources do not mark it as known exploited. The current feed maps NousResearch/hermes-agent (generic), NousResearch/hermes-agent (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Sep 3, 2026Updated Sep 8, 2026Source checked Oct 18, 2026First seen by HOL Sep 3, 2026Material review Sep 8, 2026
Upstream Advisory

Key facts

Risk
High · CVSS 8.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Not reported

Why this deserves its current priority

CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps NousResearch/hermes-agent (generic), NousResearch/hermes-agent (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
NousResearch/hermes-agentgeneric0.18.2Not reported
NousResearch/hermes-agentgeneric>=0.18.2 <=0.21.0Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for NousResearch/hermes-agent, NousResearch/hermes-agent.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Sep 3, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Sep 3, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencemanifold.security
  • Source referencevulncheck.com
Upstream source description

Hermes Agent 0.18.2 through 0.21.0, fixed in commit f6234d0, contains a remote code execution vulnerability that allows attackers to execute arbitrary OS commands by supplying a malicious repository with a crafted .git/config that sets core.fsmonitor to an attacker-controlled command. When a user opens the malicious repository and sends any message, the agent triggers a git status index refresh which executes the injected command in the user's process context, exposing the full environment including configured provider API keys.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • Remote Code Execution via JDBC User Store Configuration in Multiple WSO2 Products Allows Arbitrary Code ExecutionAlso CWE-78
  • Gitea OpenID account linking without session bindingSame generic ecosystem
  • Gitea panic on the repositories route of individual usersSame generic ecosystem
  • Gitea Actions artifact v4 API unbounded request bodySame generic ecosystem
  • Gitea cross-site request forgery on repository topicsSame generic ecosystem
  • Gitea reactions accepted on locked issues and commentsSame generic ecosystem

Record context

Vulnerability class
Command Injection
EPSS
Not reported
CWE IDs
CWE-78
Source
CVE List V5
Source checked
Oct 18, 2026
References
4 linked sources
Open source record