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OpenClaw before 2026.8.1 Information Disclosure via Configuration Hash

Type: advisorySources: OSV

OpenClaw (npm package openclaw) before 2026.8.1 could include deterministic hashes computed over the original, unredacted configuration in redacted configuration responses. When the Gateway password had low entropy and the remaining configuration values were reconstructable, these hashes acted as offline password verifiers: a caller able to obtain the redacted configuration (for example via config.get) could test password candidates offline without going through the rate-limited Gateway authentication path. Recovering the password could grant the documented shared-secret operator authority. Secret references were not affected in the same way. The issue is fixed in 2026.8.1.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-100543
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 01:54 UTC · Revision 1

Source evidence

OpenClaw before 2026.8.1 Information Disclosure via Configuration Hash

core-osv · Original source

Published 26 Sept 2026, 02:18 UTC

OpenClaw (npm package openclaw) before 2026.8.1 could include deterministic hashes computed over the original, unredacted configuration in redacted configuration responses. When the Gateway password had low entropy and the remaining configuration values were reconstructable, these hashes acted as offline password verifiers: a caller able to obtain the redacted configuration (for example via config.get) could test password candidates offline without going through the rate-limited Gateway authentication path. Recovering the password could grant the documented shared-secret operator authority. Secret references were not affected in the same way. The issue is fixed in 2026.8.1.

osv:CVE-2026-100543
Complete source record
{
  "id": "4fabf1186a8de555cb5cab2af19720500c79232912649f8dfdddb4ad6f63ca36",
  "url": "https://osv.dev/vulnerability/CVE-2026-100543",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "OpenClaw before 2026.8.1 Information Disclosure via Configuration Hash",
    "summary": "OpenClaw (npm package openclaw) before 2026.8.1 could include deterministic hashes computed over the original, unredacted configuration in redacted configuration responses. When the Gateway password had low entropy and the remaining configuration values were reconstructable, these hashes acted as offline password verifiers: a caller able to obtain the redacted configuration (for example via config.get) could test password candidates offline without going through the rate-limited Gateway authentication path. Recovering the password could grant the documented shared-secret operator authority. Secret references were not affected in the same way. The issue is fixed in 2026.8.1.",
    "evidence": "osv:CVE-2026-100543",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2026-100543",
      "aliases": [
        "CVE-2026-100543",
        "GHSA-qgj5-6x35-9g6f"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/openclaw/openclaw",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "ea806575e6450e4d1efdfc72c19f04be982a1b9b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2026.8.1"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2026.8.1"
                      }
                    ],
                    "source": "DESCRIPTION"
                  }
                ]
              }
            }
          ],
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100543.json"
          }
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      "modified": "2026-10-28T02:30:32.360288148Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100543.json",
        "https://github.com/openclaw/openclaw/security/advisories/GHSA-qgj5-6x35-9g6f",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-100543",
        "https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-information-disclosure-via-configuration-hash"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-200"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100543.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-100543",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 499498,
  "published_at": "2026-09-26T02:18:40.572+00:00"
}