CVE-2026-41331

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.

CVSS v3.1 Score

5.3

MEDIUM

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

EPSS — Exploit Prediction

0.0005

Probability of exploitation

0.16%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-408 CWE-408

Affected Products

Vendor	Product	Versions
openclaw	openclaw	< 2026.3.31

References

Advisories & Patches

https://github.com/openclaw/openclaw/commit/c4fa8635d03943ffe9e294d501089521dca635c5 https://github.com/openclaw/openclaw/security/advisories/GHSA-m6fx-m8hc-572m

Other References

https://www.vulncheck.com/advisories/openclaw-resource-consumption-via-unauthorized-telegram-audio-preflight-transcription

Frequently Asked Questions

What is CVE-2026-41331? +

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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2026-41331? +

CVE-2026-41331 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0005, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-41331? +

CVE-2026-41331 affects products from openclaw, specifically: openclaw. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-41331? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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