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.

CVE-2017-7674

CVE-2017-7674MEDIUM

Apache Software Foundation Apache Tomcat — The CORS Filter in Apache Tomcat 9.0.0.M1 to 9.0.0.M21, 8.5.0 to 8.5.15, 8.0.0.RC1 to 8.0.44 and 7.0.41 to 7.0.78 did not add an HTTP Var…

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  U  N  L  N    4.3   .0804   94.7     —

AFFECTED
  Product        Versions                 Fixed
  Apache Tomcat  9.0.0.M1 to 9.0.0.M21 –  —

TIMELINE
  Apr 11  Reserved by apache
  Aug 11  Published (CNA: apache)
  Oct 15  ENRICHED — CVE-2017-7674 (Apache Software Foundation Apache Tomcat). Received CVSS 4.3 and CPE data from NVD.

CWE-345 · CNA: apache · CVSS v3.0 · 29 references · NVD status: Modified

Description

The CORS Filter in Apache Tomcat 9.0.0.M1 to 9.0.0.M21, 8.5.0 to 8.5.15, 8.0.0.RC1 to 8.0.44 and 7.0.41 to 7.0.78 did not add an HTTP Vary header indicating that the response varies depending on Origin. This permitted client and server side cache poisoning in some circumstances.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
April 11, 2017	Reserved	Reserved by apache
August 11, 2017	Published	Published (CNA: apache)
October 15, 2026	ENRICHED	ENRICHED — CVE-2017-7674 (Apache Software Foundation Apache Tomcat). Received CVSS 4.3 and CPE data from NVD.

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Apache Software Foundation	Apache Tomcat	—	9.0.0.M1 to 9.0.0.M21	—

Weaknesses

CWE-345

References (29)

Authoritative record: CVE-2017-7674 at cve.org

Vendors: apache

Weaknesses: CWE-345

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2017-7674 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.