Reference page — cumulative record through Thursday, October 8, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U N N H 7.5 .0718 94.1 —
AFFECTED Product Versions Fixed python python 3.7 – —
TIMELINE Mar 20 Reserved by redhat Sep 9 Published (CNA: redhat) Oct 7 RESCORED — CVE-2020-10735 (python). CVSS 6.2 → 7.5 (NVD).
A flaw was found in python. In algorithms with quadratic time complexity using non-binary bases, when using int("text"), a system could take 50ms to parse an int string with 100,000 digits and 5s for 1,000,000 digits (float, decimal, int.from_bytes(), and int() for binary bases 2, 4, 8, 16, and 32 are not affected). The highest threat from this vulnerability is to system availability.
| Date | Event | Detail |
|---|---|---|
| March 20, 2020 | Reserved | Reserved by redhat |
| September 9, 2022 | Published | Published (CNA: redhat) |
| October 7, 2026 | RESCORED | RESCORED — CVE-2020-10735 (python). CVSS 6.2 → 7.5 (NVD). |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| n/a | python | — | python 3.7 | — |
Authoritative record: CVE-2020-10735 at cve.org
Weaknesses: CWE-704
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-10735 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Thursday, October 8, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
