Vulnerability · Published Mar 29, 2026 · Assigned by VulnCheck

CVE-2026-32980OpenClaw < 2026.3.13 - Resource Exhaustion via Unauthenticated Telegram Webhook Request

High 7.5

In plain English

A high-severity resource allocation without limits in OpenClaw from OpenClaw. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 46% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.5%top 54.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	openclaw	2026.3.13	GHSA-jq3f-vjww-8rq7

Affected products (as reported)

Vendor	Product	Versions
OpenClaw	OpenClaw	0 – before 2026.3.13

Weakness: CWE-770 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

GitHub Security Advisory (GHSA-jq3f-vjww-8rq7) vendor-advisory
Patch Commit patch
VulnCheck Advisory: OpenClaw < 2026.3.13 - Resource Exhaustion via Unauthenticated Telegram Webhook Request third-party-advisory