Performance Improvements to table sorting and Repeater
Summary: PortSwigger reworked Burp Suite's table sorting so that sorting large project files no longer triggers repeated slow disk retrievals or freezes the UI thread, with multi-column sorts previously requiring up to two to three times more data retrievals. It also changed how Repeater tabs are represented internally, using one set of UI components with each tab holding only its own state, and added automated regression tests tracking time and memory when starting a project file with 300 Repeater tabs.
What you should know: A project file with 300 Repeater tabs previously loaded a separate set of UI components per tab, and the resulting memory use and load time could lag the UI even when Repeater was not in active use.
Read the original at PortSwigger Research ↗
- Topics
- Vulnerabilities & Patching
- Related
- Attackers Exploit UnrealIRCd Flaw That Enables Server-Level Command Injection Cyber Risks · Nov 14, 2026U.S. CISA adds Check Point and UnrealIRCd flaws to its Known Exploited Vulnerabilities catalog Cyber Risks · Nov 14, 2026PostgreSQL Patches 52 Flaws, Including 22-Year-Old Bug Enabling Authenticated RCE Cyber Risks · Nov 13, 2026