CVE-2026-71963

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Source
https://cve.org/CVERecord?id=CVE-2026-71963
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71963.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-71963
Published
2026-09-03T15:19:30Z
Modified
2026-09-10T03:30:40Z
Severity
  • 8.6 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
Hermes Agent 0.18.2 - 0.21.0 RCE via git core.fsmonitor Config Injection
Details

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.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-78"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/71xxx/CVE-2026-71963.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "0.18.2"
                },
                {
                    "last_affected":  "0.21.0"
                }
            ],
            "source":  "AFFECTED_FIELD"
        },
        {
            "extracted_events":  [
                {
                    "introduced":  "0.18.2"
                },
                {
                    "fixed":  "0.21.0"
                }
            ],
            "source":  "DESCRIPTION"
        }
    ]
}
References

Affected packages

Git / github.com/nousresearch/hermes-agent

Affected ranges

Type
GIT
Repo
https://github.com/nousresearch/hermes-agent
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
f6234d00c5d59450adea1d7edd30ad3859375c79
Database specific
Show details 
{
    "source":  "REFERENCES"
}

Affected versions

v2026.*
v2026.3.12
v2026.3.17
v2026.3.23
v2026.3.28
v2026.3.30
v2026.4.13
v2026.4.16
v2026.4.23
v2026.4.3
v2026.4.30
v2026.4.8
v2026.5.16
v2026.5.28
v2026.5.29
v2026.5.7
v2026.6.19
v2026.6.5
v2026.7.1
v2026.7.20
v2026.7.30
v2026.7.7
v2026.7.7.2
v2026.8.13
v2026.8.16
v2026.8.16.2
v2026.8.18
v2026.8.19
v2026.8.27
v2026.8.3
v2026.8.31

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-71963.json"