CVE-2026-2577

10.0 criticalEPSS 0.7%

Critical (10.0). EPSS 0.7% chance of exploitation in the next 30 days.

The WhatsApp bridge component in Nanobot binds the WebSocket server to all network interfaces (0.0.0.0) on port 3001 by default and does not require authentication for incoming connections. An unauthenticated remote attacker with network access to the bridge can connect to the WebSocket server to hijack the WhatsApp session. This allows the attacker to send messages on behalf of the user, intercept all incoming messages and media in real-time, and capture authentication QR codes.

Severity

CVSS 3.1

10.0 critical

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
CWE: CWE-306
Published: 2026-02-16
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

References

https://github.com/HKUDS/nanobot/releases/tag/v0.1.3.post7
https://www.tenable.com/security/research/tra-2026-09

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