CVE-2026-100556

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Source
https://cve.org/CVERecord?id=CVE-2026-100556
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100556.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-100556
Aliases
  • GHSA-mm7m-wcgh-8mfq
Published
2026-09-26T02:18:50Z
Modified
2026-09-27T03:31:02Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
OpenClaw before 2026.8.1 Authentication Bypass via Session Reset
Details

OpenClaw (npm package openclaw) versions >= 2026.5.2 and < 2026.8.1 contain an incorrect authorization vulnerability in WhatsApp group handling. A group sender who is admitted for ordinary messages but denied by commands.allowFrom or owner command authorization can issue the /new command to reset the shared group session and persist a provider and model override. This allows a command-denied group member to select a provider and model already permitted by the operator for subsequent turns in the shared group session, potentially changing provider routing, cost, data flow, or availability. It does not allow adding a new provider or host command execution. The issue is fixed in version 2026.8.1.

Database specific 
{
    "cna_assigner":  "VulnCheck",
    "cwe_ids":  [
        "CWE-863"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100556.json"
}
References

Affected packages

Git / github.com/openclaw/openclaw

Affected ranges

Type
GIT
Repo
https://github.com/openclaw/openclaw
Events
Introduced
8b2a6e57fef6c582ec6d27b85150616f9e3a7ba4
Fixed
ea806575e6450e4d1efdfc72c19f04be982a1b9b
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "2026.5.2"
        },
        {
            "fixed":  "2026.8.1"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100556.json"