Rankings: All-time worst packages
Open source packages ranked by the score of their worst CVE published or escalated in the window, then by how many they have. How the score works.
- 192electronWorst: CVE-2022-4135 · Google Chrome · electron: Sandbox escape via heap overflow in GPU component
- 292react-server-dom-parcelWorst: CVE-2025-55182 · Meta react-server-dom-webpack · Meta react-server-dom-tu… +4: Pre-auth remote code execution in server function endpoints
- 392react-server-dom-turbopackWorst: CVE-2025-55182 · Meta react-server-dom-webpack · Meta react-server-dom-tu… +4: Pre-auth remote code execution in server function endpoints
- 492react-server-dom-webpackWorst: CVE-2025-55182 · Meta react-server-dom-webpack · Meta react-server-dom-tu… +4: Pre-auth remote code execution in server function endpoints
- 592CefSharp.CommonWorst: CVE-2020-15999 · Google Chrome · CefSharp.Common +3: Heap buffer overflow in FreeType font rendering
- 692CefSharp.WinFormsWorst: CVE-2020-15999 · Google Chrome · CefSharp.Common +3: Heap buffer overflow in FreeType font rendering
- 792CefSharp.WpfWorst: CVE-2020-15999 · Google Chrome · CefSharp.Common +3: Heap buffer overflow in FreeType font rendering
- 892CefSharp.Wpf.HwndHostWorst: CVE-2020-15999 · Google Chrome · CefSharp.Common +3: Heap buffer overflow in FreeType font rendering
- 992starletteWorst: CVE-2026-48710 · Kludex starlette · starlette: Security check bypass via unvalidated Host header
- 1092org.apache.logging.log4j:log4j-coreWorst: CVE-2021-44228 · Apache Software Foundation Apache Log4j2 · org.apache.lo… +4: Remote code execution in JNDI lookups
- 1192org.ops4j.pax.logging:pax-logging-log4j2Worst: CVE-2021-44228 · Apache Software Foundation Apache Log4j2 · org.apache.lo… +4: Remote code execution in JNDI lookups
- 1292@tanstack/react-startWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 1392@tanstack/solid-startWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 1492@tanstack/start-server-coreWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 1592@tanstack/vue-startWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 1692github.com/andybalholm/brotliWorst: CVE-2026-111497 · Google Brotli · node +7: Out-of-bounds write in decompression decoder
- 1792com.guicedee.services:log4j-coreWorst: CVE-2021-44228 · Apache Software Foundation Apache Log4j2 · org.apache.lo… +4: Remote code execution in JNDI lookups
- 1892org.xbib.elasticsearch:log4jWorst: CVE-2021-44228 · Apache Software Foundation Apache Log4j2 · org.apache.lo… +4: Remote code execution in JNDI lookups
- 1992uk.co.nichesolutions.logging.log4j:log4j-coreWorst: CVE-2021-44228 · Apache Software Foundation Apache Log4j2 · org.apache.lo… +4: Remote code execution in JNDI lookups
- 2092@tanstack/arktype-adapterWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 2192@tanstack/eslint-plugin-routerWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 2292@tanstack/eslint-plugin-startWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 2392@tanstack/historyWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 2492@tanstack/nitro-v2-vite-pluginWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 2592@tanstack/react-routerWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 2692@tanstack/react-router-devtoolsWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 2792@tanstack/react-router-ssr-queryWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 2892@tanstack/react-start-clientWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 2992@tanstack/react-start-rscWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 3092@tanstack/react-start-serverWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 3192@tanstack/router-cliWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 3292@tanstack/router-coreWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 3392@tanstack/router-devtoolsWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 3492@tanstack/router-devtools-coreWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 3592@tanstack/router-generatorWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 3692@tanstack/router-pluginWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 3792@tanstack/router-ssr-query-coreWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 3892@tanstack/router-utilsWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 3992@tanstack/router-vite-pluginWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 4092@tanstack/solid-routerWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 4192@tanstack/solid-router-devtoolsWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 4292@tanstack/solid-router-ssr-queryWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 4392@tanstack/solid-start-clientWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 4492@tanstack/solid-start-serverWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 4592@tanstack/start-client-coreWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 4692@tanstack/start-fn-stubsWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 4792@tanstack/start-plugin-coreWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 4892@tanstack/start-static-server-functionsWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 4992@tanstack/start-storage-contextWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
- 5092@tanstack/valibot-adapterWorst: CVE-2026-45321 · @tanstack arktype-adapter · @tanstack eslint-plugin-rou… +82: Malware in @tanstack/* npm packages steals credentials
Do you depend on one of these? Scan your lockfile.