Reference page — cumulative record through Saturday, October 3, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-78560

CVE-2026-78560MEDIUM

Okta Okta Access Gateway — Improper Authentication Validation in Okta Access Gateway Pass-Through Authentication Source

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   N  U  L  L  N    6.5   .0020    9.1     —

AFFECTED
  Product              Versions     Fixed
  Okta Access Gateway  unspecified  —

TIMELINE
  Aug 24  Reserved by Okta
  Sep 8   Published (CNA: Okta)
  Sep 23  RESCORED — CVE-2026-78560 (Okta Access Gateway). CVSS 4.8 → 6.5 (NVD).

CWE-287 · CNA: Okta · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

The Okta Access Gateway includes an optional pass-through authentication source that accepts user identity from a client-supplied HTTP header without cryptographic validation. In architectures where this optional source is enabled without an upstream reverse proxy or firewall configured to sanitize and enforce client headers, an unauthenticated user can supply an arbitrary identity value to initiate a session.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 24, 2026	Reserved	Reserved by Okta
September 8, 2026	Published	Published (CNA: Okta)
September 23, 2026	RESCORED	RESCORED — CVE-2026-78560 (Okta Access Gateway). CVSS 4.8 → 6.5 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Okta	Okta Access Gateway	—	—	—

Weaknesses

CWE-287

References (1)

https://trust.okta.com/security-advisories/improper-authentication-validation-in-okta-access-gateway-pass-through-authentication-source-cve-2026-78560 [Vendor Advisory]

Authoritative record: CVE-2026-78560 at cve.org

Vendors: okta

Weaknesses: CWE-287

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-78560 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 Saturday, October 3, 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.