High severity · published Mar 29, 2026
CVE-2026-32980
OpenClaw < 2026.3.13 - Resource Exhaustion via Unauthenticated Telegram Webhook Request
7.5
CVSS
0.5%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 45% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OP
OpenClaw · OpenClaw
before 2026.3.13 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-32980
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-32980
Patch
https://github.com/openclaw/openclaw/commit/7e49e98f79073b11134beac27fdff547ba5a4a02
Vendor Advisory
https://github.com/openclaw/openclaw/security/advisories/GHSA-jq3f-vjww-8rq7
Third Party Advisory
https://www.vulncheck.com/advisories/openclaw-resource-exhaustion-via-unauthenticated-telegram-webhook-request
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