CVE-2026-34505 OpenClaw < 2026.3.12 - Webhook Rate Limiting Bypass via Pre-Authentication Secret Validation
Attackers can bypass rate limits to brute-force webhook secrets, enabling forged webhook submissions and potential account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-34505?
CVE-2026-34505 is a medium-severity vulnerability in Openclaw Openclaw, published on 31 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OpenClaw before 2026.3.12 applies rate limiting only after successful webhook authentication, allowing attackers to bypass rate limits and brute-force webhook secrets. Attackers can submit repeated authentication requests with invalid secrets without triggering rate limit responses, enabling systematic secret guessing and subsequent forged webhook submission.
Weakness: CWE-307
Which versions are affected by CVE-2026-34505?
2 open source packages ship an affected version, including openclaw. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
openclaw npm | All versions | 2026.3.12 |
openclaw npm | All versions | 2026.3.12 |
Products include Openclaw Openclaw.
How do I fix CVE-2026-34505?
Upgrade openclaw to 2026.3.12 or later.
Is CVE-2026-34505 being exploited?
There is no known exploitation of CVE-2026-34505 in the wild and no public exploit code.
Other vulnerabilities in Openclaw Openclaw
- CVE-2026-28363 Security feature bypass in OpenClaw
- CVE-2026-30741 Code injection in n/a
- CVE-2026-33579 OpenClaw < 2026.3.28 - Privilege Escalation via Missing Caller Scope Validation in Device Pair Approval
- CVE-2026-32922 OpenClaw < 2026.3.11 - Privilege Escalation via Unvalidated Scope in device.token.rotate
- CVE-2026-32978 OpenClaw < 2026.3.11 - Approval Bypass via Unrecognized Script Runners
Sources
Also known as GHSA-5m9r-p9g7-679c, MINI-7gj7-2wxm-f4v9, MINI-rf43-28rr-49vq.