Finding and Patching a CPython 0day in Hours: CVE-2026-6100
theori.io | vulnerability | Critical | CVE-2026-6100 | #ai-security | #zero-day | #use-after-free | #patch | #cpython | #cve-2026-6100 | #tarfile
Summary
CVE-2026-6100 timeline: Xint Code flagged a critical CPython tarfile flaw within 30 minutes, and Python maintainers patched three compression modules the day after the report.
- CVE
- CVE-2026-6100
- CVSS
- 9.1
- Published
- Collected
--- id: 4641 title: "Finding and Patching a CPython 0day in Hours: CVE-2026-6100" cve: CVE-2026-6100 cvss: 9.1 severity: critical source_domain: theori.io source_url: "https://theori.io/blog/finding-and-patching-a-cpython-0day-in-hours-cve20266100--157979" published_at: "2026-04-13 20:44" tags: ["ai-security", "zero-day", "use-after-free", "patch", "cpython", "cve-2026-6100", "tarfile"] phying_url: "https://phying.com/item/4641" lang: en --- # Finding and Patching a CPython 0day in Hours: CVE-2026-6100 ## Summary CVE-2026-6100 timeline: Xint Code flagged a critical CPython tarfile flaw within 30 minutes, and Python maintainers patched three compression modules the day after the report. ## Intelligence Metadata - **Sources:** theori.io - **CVE:** CVE-2026-6100 - **CVSS:** 9.1 - **Published:** 2026-04-13 20:44 - **Original:** https://theori.io/blog/finding-and-patching-a-cpython-0day-in-hours-cve20266100--157979 - **Phying News:** https://phying.com/item/4641