OpenClaw < 2026.3.13 - Resource Exhaustion via Unauthenticated Telegram Webhook Request | Advisories

Advisories

OpenClaw < 2026.3.13 - Resource Exhaustion via Unauthenticated Telegram Webhook Request

severity: high
date: 3/29/2026
Affecting: OpenClaw < 2026.3.13
CVE: CVE-2026-32980
CWE: CWE-770 Allocation of Resources Without Limits or Throttling
CVSS: 8.7
CVSS V4 Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
References: GitHub Security Advisory (GHSA-jq3f-vjww-8rq7)
Patch Commit
Credit: space08
Description: OpenClaw before 2026.3.13 reads and buffers Telegram webhook request bodies before validating the x-telegram-bot-api-secret-token header, allowing unauthenticated attackers to exhaust server resources. Attackers can send POST requests to the webhook endpoint to force memory consumption, socket time, and JSON parsing work before authentication validation occurs.

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