CVE-2026-32980

HIGH EPSS 40.8%
Published Mar 29, 20263mo ago · Modified Jun 17, 20262w ago
8.7 CVSS 4.0
High
Find Similar
Published Mar 29, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
8.7
Exploitability
—
Impact
—
Vector string
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
40.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-770

Affected Products 1

VendorProductVersionRange
openclawopenclaw* <2026.3.13

References 3

  • github.com https://github.com/openclaw/openclaw/commit/7e49e98f79073b11134beac27fdff547ba5a4a02
    Patch
  • github.com https://github.com/openclaw/openclaw/security/advisories/GHSA-jq3f-vjww-8rq7
    Vendor Advisory
  • vulncheck.com https://www.vulncheck.com/advisories/openclaw-resource-exhaustion-via-unauthenticated-telegram-webhook-request
    Third Party Advisory

Remediation

  • github.com https://github.com/openclaw/openclaw/commit/7e49e98f79073b11134beac27fdff547ba5a4a02
    Patch