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Medium

Nesquena Hermes WebUI Environment Variable Credential Leakage via Profile Switch

Type: advisorySources: OSV

nesquena hermes-webui contains an environment variable leakage vulnerability where profile switching does not clear environment variables from the previously active profile before loading the next profile. Attackers or users can exploit additive dotenv reload behavior to access provider API keys and other sensitive secrets from one profile context in another profile, breaking expected security isolation between profiles.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-6830
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 21:34 UTC · Revision 1

Source evidence

Nesquena Hermes WebUI Environment Variable Credential Leakage via Profile Switch

core-osv · Original source

Published 21 Apr 2026, 21:33 UTC

nesquena hermes-webui contains an environment variable leakage vulnerability where profile switching does not clear environment variables from the previously active profile before loading the next profile. Attackers or users can exploit additive dotenv reload behavior to access provider API keys and other sensitive secrets from one profile context in another profile, breaking expected security isolation between profiles.

osv:CVE-2026-6830
Complete source record
{
  "id": "09de658e5429eedb0f9c21cc05036ded5c96b0dcade1e432c92df8300d146e16",
  "url": "https://osv.dev/vulnerability/CVE-2026-6830",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Nesquena Hermes WebUI Environment Variable Credential Leakage via Profile Switch",
    "summary": "nesquena hermes-webui contains an environment variable leakage vulnerability where profile switching does not clear environment variables from the previously active profile before loading the next profile. Attackers or users can exploit additive dotenv reload behavior to access provider API keys and other sensitive secrets from one profile context in another profile, breaking expected security isolation between profiles.",
    "evidence": "osv:CVE-2026-6830",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-6830",
      "aliases": [
        "CVE-2026-6830"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nesquena/hermes-webui",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "88dc8bbe26a6055161d3251b70f5cd3d3c5831b0"
                },
                {
                  "fixed": "f6e1612c7e9aab97a0866ca8f3985f1fd99f52f6"
                },
                {
                  "fixed": "09bbbfc657c372481f23f377753befcfc2f08d20"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "fixed": "88dc8bbe26a6055161d3251b70f5cd3d3c5831b0"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f6e1612c7e9aab97a0866ca8f3985f1fd99f52f6"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.50.132"
                  },
                  {
                    "range": [
                      {
                        "fixed": "09bbbfc657c372481f23f377753befcfc2f08d20"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "v0.50.12"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.50.11",
            "v0.50.10",
            "v0.50.9",
            "v0.50.8",
            "v0.50.7",
            "v0.50.6",
            "v0.50.5",
            "v0.50.4",
            "v0.50.3",
            "v0.50.2",
            "v0.50.1",
            "v0.50.0",
            "v0.49.4",
            "v0.49.3",
            "v0.49.2",
            "v0.49.1",
            "v0.49.0",
            "v0.48.2",
            "v0.48.1",
            "v0.48.0",
            "v0.47.1",
            "v0.47.0",
            "v0.46.0",
            "v0.45.0",
            "v0.44.1",
            "v0.44.0",
            "v0.43.1",
            "v0.43.0",
            "v0.42.2",
            "v0.42.1",
            "v0.42.0",
            "v0.41.0",
            "v0.40.2",
            "v0.40.1",
            "v0.40.0",
            "v0.39.1",
            "v0.39.0",
            "v0.38.6",
            "v0.38.5",
            "v0.38.4",
            "v0.38.3",
            "v0.38.2",
            "v0.38.1",
            "v0.38.0",
            "v0.37.0",
            "v0.36.3",
            "v0.36.2",
            "v0.36.1",
            "v0.36",
            "v0.35.1",
            "v0.35",
            "v0.34.3",
            "v0.34.2",
            "v0.34.1",
            "v0.34",
            "v0.33",
            "v0.32",
            "v0.31.2",
            "v0.31.1",
            "v0.31",
            "v0.30.4",
            "v0.30.3",
            "v0.30.2",
            "v0.30.1",
            "v0.30",
            "v0.29",
            "v0.28.1",
            "v0.28",
            "v0.27",
            "v0.26",
            "v0.25",
            "v0.24",
            "v0.23",
            "v0.22",
            "v0.21",
            "v0.20",
            "v0.19",
            "v0.18.1",
            "v0.18",
            "v0.17.3",
            "v0.17.2",
            "v0.17.1",
            "v0.16.2",
            "v0.16.1",
            "v0.16",
            "v0.12"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-6830.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.836439866Z",
      "provider": "osv",
      "references": [
        "https://github.com/nesquena/hermes-webui/releases/tag/v0.50.132",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6830.json",
        "https://github.com/nesquena/hermes-webui/releases/tag/v0.50.12",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-6830",
        "https://www.vulncheck.com/advisories/nesquena-hermes-webui-environment-variable-credential-leakage-via-profile-switch",
        "https://github.com/nesquena/hermes-webui/pull/351",
        "https://github.com/nesquena/hermes-webui/commit/88dc8bbe26a6055161d3251b70f5cd3d3c5831b0"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-459",
          "CWE-668"
        ],
        "cna_assigner": "VulnCheck",
        "unresolved_ranges": [
          {
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "PR #351"
                  }
                ],
                "source": "AFFECTED_FIELD",
                "strategy": "StandardRange"
              }
            ]
          }
        ],
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/6xxx/CVE-2026-6830.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-6830",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 507345,
  "published_at": "2026-04-21T21:33:28.985+00:00"
}