CVE-2026-32980 | THREATINT

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.

PUBLISHED Reserved 2026-03-17 | Published 2026-03-29 | Updated 2026-03-30 | Assigner VulnCheck

HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

HIGH: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Problem types

Allocation of Resources Without Limits or Throttling

Product status

Default status

unaffected

Any version before 2026.3.13

affected

2026.3.13 (semver)

unaffected

Credits

space08 reporter

References

github.com/...enclaw/security/advisories/GHSA-jq3f-vjww-8rq7 (GitHub Security Advisory (GHSA-jq3f-vjww-8rq7)) third-party-advisory

github.com/...ommit/7e49e98f79073b11134beac27fdff547ba5a4a02 (Patch Commit) patch

www.vulncheck.com/...nauthenticated-telegram-webhook-request (VulnCheck Advisory: OpenClaw < 2026.3.13 - Resource Exhaustion via Unauthenticated Telegram Webhook Request) third-party-advisory

cve.org (CVE-2026-32980)

nvd.nist.gov (CVE-2026-32980)

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