Reference page — cumulative record through Monday, October 19, 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 H L R C L H N 6.5 .1156 96.0 —
AFFECTED Product Versions Fixed Spring Framework 4.3 – —
TIMELINE Jan 3 Reserved by pivotal Sep 19 Published (CNA: pivotal) Oct 8 RESCORED — CVE-2020-5421 (Spring by VMware Spring Framework). CVSS 8.7 → 6.5 (NVD).
In Spring Framework versions 5.2.0 - 5.2.8, 5.1.0 - 5.1.17, 5.0.0 - 5.0.18, 4.3.0 - 4.3.28, and older unsupported versions, the protections against RFD attacks from CVE-2015-5211 may be bypassed depending on the browser used through the use of a jsessionid path parameter.
| Date | Event | Detail |
|---|---|---|
| January 3, 2020 | Reserved | Reserved by pivotal |
| September 19, 2020 | Published | Published (CNA: pivotal) |
| October 8, 2026 | RESCORED | RESCORED — CVE-2020-5421 (Spring by VMware Spring Framework). CVSS 8.7 → 6.5 (NVD). |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| Spring by VMware | Spring Framework | — | 4.3 | — |
Authoritative record: CVE-2020-5421 at cve.org
Vendors: spring by vmware
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2020-5421 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 Monday, October 19, 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.
