Hermes WebUI < 0.51.311 RCE via Git Configuration Injection_CVE-2026-49959

{
    "lastseen": "",
    "description": "Hermes WebUI before version 0.51.311 contains a remote code execution vulnerability that allows authenticated attackers to execute arbitrary commands by placing malicious executable Git configuration in a workspace repository's .git/config file. Attackers can exploit Git subprocess invocations in api/workspace_git.py through vectors such as core.fsmonitor during git status, protocol.ext.allow with ext:: remotes during git fetch, credential.helper, core.askPass, core.gitProxy, or inherited environment variables including GIT_SSH_COMMAND to achieve arbitrary command execution on the host running the application.",
    "published": "2026-06-09T16:46:03.502Z",
    "modified": "2026-06-09T16:46:03.502Z",
    "type": "cve",
    "title": "Hermes WebUI < 0.51.311 RCE via Git Configuration Injection",
    "source": "VulnCheck",
    "references": "https://github.com/nesquena/hermes-webui/releases/tag/v0.51.311\nhttps://github.com/nesquena/hermes-webui/pull/3776\nhttps://github.com/nesquena/hermes-webui/commit/938ac9f55b53def1eefb48c4c42dabaf9c22e99c\nhttps://www.vulncheck.com/advisories/hermes-webui-rce-via-git-configuration-injection",
    "id": "CVE-2026-49959",
    "bulletinFamily": "",
    "cwe": [
        "CWE-78"
    ],
    "cvelist": null,
    "sourceData": "nesquena hermes-webui 0",
    "sourceHref": "",
    "cvss": {
        "score": 8.7,
        "severity": "HIGH",
        "vector": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "hermes-webui",
    "version": "0.51.311",
    "vendor": "nesquena",
    "ai_description": "Remote code execution vulnerability via Git configuration injection",
    "ai_severity": "High",
    "ai_vendor": "nesquena",
    "ai_product": "Hermes WebUI",
    "ai_version": "0.51.311",
    "ai_score": 8.7
}