How serious is CVE-2026-2577?

This vulnerability has a CVSS score of 10 out of 10, classified as CRITICAL severity. Proof-of-concept exploit code is publicly available, making this an active threat.

Is there exploit code available for CVE-2026-2577?

Yes, proof-of-concept exploit code for CVE-2026-2577 is publicly available on GitHub and security research platforms. This increases the risk of active exploitation.

Which products are affected by CVE-2026-2577?

Check the official CVE details for a complete list of affected products and versions.

How do I fix CVE-2026-2577?

To remediate CVE-2026-2577, check for security patches from the vendor. Apply all available updates and security patches. If no patch is available, implement recommended workarounds or security controls to mitigate the risk.

CVE-2026-2577

Critical

|10.0

Exploit Available

Plain English Summary

AI-powered analysis for quick understanding

An attacker can take control of a user's WhatsApp account by connecting to an unprotected WebSocket server that is open to anyone on the network. This requires the attacker to have network access to the server, allowing them to send and receive messages as if they were the user, and even capture sensitive information like authentication codes.

Technical Description

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.

CVSS Vector Analysis

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

Confidentiality ImpactHigh

Integrity ImpactHigh

Availability ImpactNone

ScopeChanged

Vector String

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

Exploit Resources

Search for proof-of-concept code and exploit modules

GitHub Search Exploit-DB Nuclei Templates Metasploit Vulners

Official References

NIST NVD

Est. Bounty

$15,000($5K-$15K)

Vendor Response

Grade APatched in 2 days

Quick Information

Published

Feb 16, 2026

about 2 months ago

Last Modified

Feb 18, 2026

about 2 months ago