| Component | OpenClaw |
| Severity | medium (CVSS 5.3) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
| Published (NVD) | 2026-04-21 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw < 2026.3.31 |
| Fixed in | 2026.3.31 |
| Weakness | CWE-408 |
| CISA KEV | not listed |
NVD description
OpenClaw before 2026.3.31 contains a resource consumption vulnerability in Telegram audio preflight transcription that allows unauthorized group senders to trigger transcription processing. Attackers can exploit insufficient allowlist enforcement to cause resource or billing consumption by initiating audio preflight operations before authorization checks are applied.
What to do
- Upgrade OpenClaw to
2026.3.31or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-41331
- https://github.com/openclaw/openclaw/security/advisories/GHSA-m6fx-m8hc-572m
- https://github.com/openclaw/openclaw/commit/c4fa8635d03943ffe9e294d501089521dca635c5
- https://www.vulncheck.com/advisories/openclaw-resource-consumption-via-unauthorized-telegram-audio-preflight-transcription
Read more
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