CVE-2026-33580

OpenClaw < 2026.3.28 - Brute Force Attack via Missing Rate Limiting on Webhook Shared Secret Authentication

CVSS 6.3 MEDIUMEPSS 0.4%CWE-307

Vexday Risk Score

13Bajo

Decisión SSVC (CISA)

Track

Sin señal de explotación → monitorear

CVSS 6.3EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Ciclo de vida

31 mar 2026Publicada en NVD

Recomendación: Monitorear — sin señal de explotación por ahora.

OpenClaw before 2026.3.28 contains a missing rate limiting vulnerability in the Nextcloud Talk webhook authentication that allows attackers to brute-force weak shared secrets. Attackers who can reach the webhook endpoint can exploit this to forge inbound webhook events by repeatedly attempting authentication without throttling.

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

Productos afectados

OpenClaw · OpenClaw

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Referencias

https://github.com/openclaw/openclaw/commit/e403decb6e20091b5402780a7ccd2085f98aa3cd https://github.com/openclaw/openclaw/security/advisories/GHSA-9528-x887-j2fp https://www.vulncheck.com/advisories/openclaw-brute-force-attack-via-missing-rate-limiting-on-webhook-shared-secret-authentication