Exploitation evidence
Not listed in the latest downloaded CISA KEV catalog. This does not establish an absence of exploitation.
KEV checked 13 Nov 2026, 00:20 Jerusalem · Original catalog ↗Reported products and versions
NousResearch / hermes-agent
Default status: affected
- affected: 0.18.2 to ≤ 0.21.0 (semver)
- unaffected: f6234d00c5d59450adea1d7edd30ad3859375c79 (git)
Fixes and workarounds
No explicit solution text in the downloaded CVE record. Consult the vendor advisory; unaffected version ranges are shown above as reported, not inferred as a patch recommendation.
Sources and related reporting
CVE Program record ↗ · Download tracked evidence as JSON
- https://www.manifold.security/blog/ai-coding-agents-git-hijack
- https://github.com/NousResearch/hermes-agent/pull/101483
- https://github.com/NousResearch/hermes-agent/commit/f6234d00c5d59450adea1d7edd30ad3859375c79
- https://www.vulncheck.com/advisories/hermes-agent-rce-via-git-core-fsmonitor-config-injection
Monitored source mentions
Shared CVE identifiers link source mentions; they do not establish that the reports describe the same incident.
Reviewed Egret reports
Observed change timeline
History begins when Egret first downloads each source. It is not the complete upstream CVE history.
12 Nov 2026, 18:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-12",
"epss": 0.00858,
"percentile": 0.58922
}12 Nov 2026, 12:20 Jerusalem · EPSS observation updated
Stored EPSS snapshot at this observation.
{
"date": "2026-11-10",
"epss": 0.00858,
"percentile": 0.58747
}12 Nov 2026, 12:20 Jerusalem · CVE Program record changed
Stored CNA snapshot at this observation.
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-71963",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-03T15:41:06.481007Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-09-03T15:41:27.998Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "affected",
"packageURL": "pkg:github/NousResearch/hermes-agent",
"product": "hermes-agent",
"repo": "https://github.com/NousResearch/hermes-agent",
"vendor": "NousResearch",
"versions": [
{
"lessThanOrEqual": "0.21.0",
"status": "affected",
"version": "0.18.2",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "f6234d00c5d59450adea1d7edd30ad3859375c79",
"versionType": "git"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "finder",
"value": "Francisco Rosales"
}
],
"datePublic": "2026-09-01T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"metrics": [
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"exploitMaturity": "NOT_DEFINED",
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"providerUrgency": "NOT_DEFINED",
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"subIntegrityImpact": "NONE",
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"valueDensity": "NOT_DEFINED",
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"version": "4.0",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
{
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"baseScore": 8.8,
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"confidentialityImpact": "HIGH",
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"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
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],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-78",
"description": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
"lang": "en",
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"providerMetadata": {
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"references": [
{
"name": "Manifold Blog",
"tags": [
"technical-description",
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],
"url": "https://www.manifold.security/blog/ai-coding-agents-git-hijack"
},
{
"name": "Pull Request",
"tags": [
"issue-tracking",
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],
"url": "https://github.com/NousResearch/hermes-agent/pull/101483"
},
{
"name": "Patch Commit",
"tags": [
"patch"
],
"url": "https://github.com/NousResearch/hermes-agent/commit/f6234d00c5d59450adea1d7edd30ad3859375c79"
},
{
"tags": [
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],
"url": "https://www.vulncheck.com/advisories/hermes-agent-rce-via-git-core-fsmonitor-config-injection"
}
],
"source": {
"discovery": "UNKNOWN"
},
"tags": [
"x_open-source"
],
"title": "Hermes Agent 0.18.2 - 0.21.0 RCE via git core.fsmonitor Config Injection",
"x_generator": {
"engine": "vulncheck"
}
}
},
"cveMetadata": {
"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
"assignerShortName": "VulnCheck",
"cveId": "CVE-2026-71963",
"datePublished": "2026-09-03T15:19:30.310Z",
"dateReserved": "2026-08-08T16:43:04.177Z",
"dateUpdated": "2026-11-08T14:08:34.950Z",
"state": "PUBLISHED"
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"dataType": "CVE_RECORD",
"dataVersion": "5.2"
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