What’s Vulnerable › Vulnerabilities

CVE-2026-41331: OpenClaw < 2026.3.31 - Resource Consumption via Unauthorized Telegram Audio Preflight Transcription

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-04-21 · updated 2026-06-17
• Weakness: CWE-408

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.

Affected products

• OpenClaw: before 2026.3.31 — fixed in 2026.3.31

How to fix

Upgrade to a fixed version: OpenClaw 2026.3.31. Check the vendor advisory for mitigations.

References

• https://github.com/openclaw/openclaw/commit/c4fa8635d03943ffe9e294d501089521dca635c5
• https://github.com/openclaw/openclaw/security/advisories/GHSA-m6fx-m8hc-572m
• https://www.vulncheck.com/advisories/openclaw-resource-consumption-via-unauthorized-telegram-audio-preflight-transcription

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