Vulnerability-Lookup

CVE-2026-35621 (GCVE-0-2026-35621)

Vulnerability from cvelistv5 – Published: 2026-04-10 16:03 – Updated: 2026-06-23 16:15 X_Open Source

Title

OpenClaw < 2026.3.24 - Privilege Escalation via chat.send to Allowlist Persistence

Summary

OpenClaw before 2026.3.24 contains a privilege escalation vulnerability where the /allowlist command fails to re-validate gateway client scopes for internal callers, allowing operator.write-scoped clients to mutate channel authorization policy. Attackers can exploit chat.send to build an internal command-authorized context and persist channel allowFrom and groupAllowFrom policy changes reserved for operator.admin scope.

Severity

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-04-10 18:21 UTC

CWE

CWE-862 - Missing Authorization

Assigner

VulnCheck mitre root

References

2 references

URL	Tags
https://github.com/openclaw/openclaw/security/adv…	vendor-advisory
https://www.vulncheck.com/advisories/openclaw-pri…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version	CPE status
OpenClaw	OpenClaw	Affected: 0 , < 2026.3.24 (semver) Unaffected: 2026.3.24 (semver) cpe:2.3:a:openclaw:openclaw::::::node.js::*

Date Public

2026-03-27 00:00

Credits

Peng Zhou (@zpbrent)

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-35621

Vulnerability from fkie_nvd - Published: 2026-04-10 17:17 - Updated: 2026-06-17 10:40

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Summary

References

	URL	Tags
	disclosure@vulncheck.com	https://github.com/openclaw/openclaw/security/advisories/GHSA-94pw-c6m8-p9p9	Exploit, Mitigation, Vendor Advisory
	disclosure@vulncheck.com	https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-chat-send-to-allowlist-persistence	Third Party Advisory

Impacted products

	Vendor	Product	Version
	openclaw	openclaw	*

JSON

To clipboard

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          "options": [
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              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-04-10T18:21:07.292383Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-04-10T17:17:04.520",
  "references": [
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Exploit",
        "Mitigation",
        "Vendor Advisory"
      ],
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-94pw-c6m8-p9p9"
    },
    {
      "source": "disclosure@vulncheck.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.vulncheck.com/advisories/openclaw-privilege-escalation-via-chat-send-to-allowlist-persistence"
    }
  ],
  "sourceIdentifier": "disclosure@vulncheck.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "disclosure@vulncheck.com",
      "type": "Secondary"
    }
  ]
}

GHSA-94PW-C6M8-P9P9

Vulnerability from github – Published: 2026-03-30 18:52 – Updated: 2026-04-10 17:20

Summary

OpenClaw: Gateway operator.write Can Reach Admin-Class Channel Allowlist Persistence via chat.send

Details

Fixed in OpenClaw 2026.3.24, the current shipping release.

Summary

The shared /allowlist command persists channel authorization config through writeConfigFile(...) but does not re-validate gateway client scopes for internal gateway callers. Because chat.send is intentionally reachable to operator.write callers and still creates a generic command-authorized internal context, an authenticated write-scoped gateway client can indirectly mutate channel allowFrom and groupAllowFrom policy that direct config.patch correctly reserves to operator.admin.

This is not just a generic code smell. The current code already shows the intended boundary by adding sink-side internal admin checks to shared /config and /plugins writes, but /allowlist was left behind.

Details

The gateway's documented scope split is clear:

chat.send is a write-scoped action.
direct config mutation is an admin-scoped action.

The vulnerable path is:

A gateway client authenticates with operator.write.
The client calls chat.send, which is intentionally allowed for that scope.
chat.send builds an internal message context with CommandAuthorized: true and carries GatewayClientScopes into the reply pipeline.
resolveCommandAuthorization(...) converts that internal message into isAuthorizedSender=true in the common case where no stricter commands.allowFrom override is configured.
/allowlist add|remove accepts that generic command authorization and proceeds into its config-backed edit path.
The handler clones the parsed config, calls plugin.allowlist.applyConfigEdit(...), validates the result, and persists it with writeConfigFile(validated.config).
No sink-side check requires operator.admin before the persistent write occurs.

That creates a direct control-plane mismatch:

config.patch rejects the same caller with missing scope: operator.admin.
/allowlist add dm ... or /allowlist add group ... reached through chat.send can still rewrite channel authorization state.

Impact

A gateway client intentionally limited to operator.write can persist first-party channel authorization policy.
The caller can widen DM or group allowlists for channels using the shared /allowlist plumbing.
This weakens the repo's documented control-plane privilege split between ordinary write actions and admin-only persistent authorization mutation.

Remediation

1) Add the Missing Sink-Side Internal Admin Check to `/allowlist`

Mirror the existing hardened pattern from /config and /plugins.

Before any config-backed /allowlist add|remove write, require:

operator.admin for internal gateway channels

This should happen before plugin.allowlist.applyConfigEdit(...) and before writeConfigFile(...).

2) Keep Pairing-Store and Config-Write Policy Checks, but Do Not Treat Them as Scope Enforcement

configWrites policy and pairing-store behavior are useful secondary controls, but they do not replace the missing privilege check between operator.write and operator.admin.

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2026.3.23"
      },
      "package": {
        "ecosystem": "npm",
        "name": "openclaw"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2026.3.24"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-35621"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-269"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-30T18:52:38Z",
    "nvd_published_at": null,
    "severity": "HIGH"
  },
  "details": "\u003e Fixed in OpenClaw 2026.3.24, the current shipping release.\n\n## Summary\n\nThe shared `/allowlist` command persists channel authorization config through `writeConfigFile(...)` but does not re-validate gateway client scopes for internal gateway callers. Because `chat.send` is intentionally reachable to `operator.write` callers and still creates a generic command-authorized internal context, an authenticated write-scoped gateway client can indirectly mutate channel `allowFrom` and `groupAllowFrom` policy that direct `config.patch` correctly reserves to `operator.admin`.\n\nThis is not just a generic code smell. The current code already shows the intended boundary by adding sink-side internal admin checks to shared `/config` and `/plugins` writes, but `/allowlist` was left behind.\n\n## Details\n\nThe gateway\u0027s documented scope split is clear:\n\n- `chat.send` is a write-scoped action.\n- direct config mutation is an admin-scoped action.\n\nThe vulnerable path is:\n\n1. A gateway client authenticates with `operator.write`.\n2. The client calls `chat.send`, which is intentionally allowed for that scope.\n3. `chat.send` builds an internal message context with `CommandAuthorized: true` and carries `GatewayClientScopes` into the reply pipeline.\n4. `resolveCommandAuthorization(...)` converts that internal message into `isAuthorizedSender=true` in the common case where no stricter `commands.allowFrom` override is configured.\n5. `/allowlist add|remove` accepts that generic command authorization and proceeds into its config-backed edit path.\n6. The handler clones the parsed config, calls `plugin.allowlist.applyConfigEdit(...)`, validates the result, and persists it with `writeConfigFile(validated.config)`.\n7. No sink-side check requires `operator.admin` before the persistent write occurs.\n\nThat creates a direct control-plane mismatch:\n\n- `config.patch` rejects the same caller with `missing scope: operator.admin`.\n- `/allowlist add dm ...` or `/allowlist add group ...` reached through `chat.send` can still rewrite channel authorization state.\n\n## Impact\n\n- A gateway client intentionally limited to `operator.write` can persist first-party channel authorization policy.\n- The caller can widen DM or group allowlists for channels using the shared `/allowlist` plumbing.\n- This weakens the repo\u0027s documented control-plane privilege split between ordinary write actions and admin-only persistent authorization mutation.\n\n## Remediation\n\n### 1) Add the Missing Sink-Side Internal Admin Check to `/allowlist`\n\nMirror the existing hardened pattern from `/config` and `/plugins`.\n\nBefore any config-backed `/allowlist add|remove` write, require:\n\n- `operator.admin` for internal gateway channels\n\nThis should happen before `plugin.allowlist.applyConfigEdit(...)` and before `writeConfigFile(...)`.\n\n### 2) Keep Pairing-Store and Config-Write Policy Checks, but Do Not Treat Them as Scope Enforcement\n\n`configWrites` policy and pairing-store behavior are useful secondary controls, but they do not replace the missing privilege check between `operator.write` and `operator.admin`.",
  "id": "GHSA-94pw-c6m8-p9p9",
  "modified": "2026-04-10T17:20:19Z",
  "published": "2026-03-30T18:52:38Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openclaw/openclaw/security/advisories/GHSA-94pw-c6m8-p9p9"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/openclaw/openclaw"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [],
  "summary": "OpenClaw: Gateway operator.write Can Reach Admin-Class Channel Allowlist Persistence via chat.send"
}

WID-SEC-W-2026-1065

Vulnerability from csaf_certbund - Published: 2026-04-12 22:00 - Updated: 2026-04-12 22:00

Summary

OpenClaw: Mehrere Schwachstellen

Severity

Hoch

Scope

13 vulnerabilities in this advisory, including CVE-2026-35621.

CVE-2026-35621

Known affected: 1 product

Open the full advisory

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-35621 (GCVE-0-2026-35621)

FKIE_CVE-2026-35621

GHSA-94PW-C6M8-P9P9

Summary

Details

Impact

Remediation

1) Add the Missing Sink-Side Internal Admin Check to /allowlist

2) Keep Pairing-Store and Config-Write Policy Checks, but Do Not Treat Them as Scope Enforcement

WID-SEC-W-2026-1065

Tags

Sightings

Nomenclature

Related by attack behaviour

1) Add the Missing Sink-Side Internal Admin Check to `/allowlist`