Server-Side Request Forgery Vulnerability in bitcoinj Payment Request Handler
CVE-2026-111210

6.9MEDIUM

Key Information:

Vendor: bitcoinj
Status: Bitcoinj
Vendor: CVE Published:; 16 October 2026

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👾 Exploit Exists🟡 Public PoC

What is CVE-2026-111210?

A vulnerability exists in the bitcoinj Payment Request Handler, specifically in the url.openConnection function within PaymentSession.java. This flaw enables an attacker to manipulate the pki_type argument, potentially leading to server-side request forgery. Remote exploitation is possible, and although the vulnerability has been disclosed publicly and identified through an issue report, the project has yet to respond to the concern.

Affected Version(s)

bitcoinj 0.1

bitcoinj 0.2

bitcoinj 0.3

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-111210 - Proof of Concept