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CVE-2026-35620

Vulnerability in openclaw (CVE-2026-35620)

Summary

Vulnerability in openclaw (CVE-2026-35620). Risk of unauthorized operations or information disclosure. Exploitable via sendPolicy. Mitigation: upgrade to 2026.3.24 or later.

Original description

The description as published by the source.

Fixed in OpenClaw 2026.3.24, the current shipping release.

Title
Non-owner command-authorized sender can change the owner-only /send session delivery policy

CWE
CWE-285 Improper Authorization

CVSS v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Base score: 5.4 (Medium)

Severity Assessment
Medium. This is a real owner-only authorization bypass, but the demonstrated impact is limited to persistent mutation of the current session’s delivery policy rather than direct code execution, sandbox escape, or cross-host compromise.

Impact
A non-owner sender who is allowed to run commands can invoke /send on|off|inherit and persistently change the current session’s sendPolicy, even though OpenClaw documents /send as owner-only.

That lets a lower-trust participant:

  • disable reply delivery for the current session (/send off), suppressing future replies in that chat;
  • re-enable reply delivery (/send on) after the owner intentionally disabled it;
  • remove the session override (/send inherit).

Affected Component
Verified against the latest published GitHub release tag v2026.3.23 (ccfeecb6887cd97937e33a71877ad512741e82b2), published 2026-03-23T23:15:50Z.

Exact vulnerable path on the shipped tag:

  • src/auto-reply/reply/commands-session.ts:212-239
    • handleSendPolicyCommand(...) checks only params.command.isAuthorizedSender.
    • when true, it mutates params.sessionEntry.sendPolicy and persists the session entry.…

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2026-35620 has been found in openclaw.
Attackers can target a specific entry point like sendPolicy over the network to misuse the product.
Risk of unauthorized operations or information disclosure.
What to do: upgrade openclaw to 2026.3.24 or later.
If unsure, ask your IT team or search "openclaw CVE-2026-35620" on the vendor's site.

CVE-2026-35620 (openclaw) — CWE-285
Attack vector: remote (network-reachable) / no user interaction
Attack surface: sendPolicy / ccfeecb6887cd97937e33a71877ad512741e82b2 / params.command.isAuthorizedSender / params.sessionEntry.sendPolicy
Patched: 2026.3.24 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-285) exists in openclaw. Attackers reach the vulnerable code path via sendPolicy.

📍 Affected scope

Check the vendor advisory for the affected versions of openclaw. Attack surface: sendPolicy / ccfeecb6887cd97937e33a71877ad512741e82b2 / params.command.isAuthorizedSender / params.sessionEntry.sendPolicy.

🔥 Severity

Severity: ?. Risk of unauthorized operations or information disclosure.

🔧 How to fix

Update to 2026.3.24.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'openclaw' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify 
    grep -r 'openclaw' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で openclaw を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Apply patch patch 
    Upgrade openclaw to 2026.3.24

    ステージング環境で 2026.3.24 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。

  3. 3
    Post-deployment verification verify 
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

npm openclaw
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"2026.3.24"}]}]

References

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