https://pnasis.gitlab.io/tags/delegatecall/ Recent content in Delegatecall on pnasis Hugo en-us Mon, 29 Jun 2026 19:16:35 +0300 https://pnasis.gitlab.io/posts/sekaictf-2026-blockchain-writeups-part-2-pp-farming-2/ Mon, 29 Jun 2026 19:16:35 +0300 https://pnasis.gitlab.io/posts/sekaictf-2026-blockchain-writeups-part-2-pp-farming-2/ <h2 id="introduction">Introduction</h2> <p>    This post continues my <strong>SekaiCTF 2026</strong> writeup series, this time focusing on the second blockchain challenge I solved during the competition: <strong>PP Farming 2</strong>.</p> <p>    Unlike the first challenge, which revolved around a classic reentrancy vulnerability, this challenge presented a more subtle issue. The challenge author attempted to eliminate the original vulnerability by introducing a reentrancy guard, but in doing so accidentally introduced an entirely different class of vulnerability involving Solidity&rsquo;s <code>delegatecall</code> instruction.</p>