CVE-2026-32980

OpenClaw < 2026.3.13 - Resource Exhaustion via Unauthenticated Telegram Webhook Request

State: Published
Severity: 8.7 High
Published: Mar 29, 2026
Updated: Jun 23, 2026
Reserved: Mar 17, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	8.7 High	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	VulnCheck
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	VulnCheck

Weaknesses

CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

Product	Versions
OpenClawOpenClaw	before 2026.3.13Affected 2026.3.13Not affected

References

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

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