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-2026-78426

CVE-2026-78426LOW

SUSE neuvector — Logout bypass via alternate JWT spelling

  AV  AC  AT  PR  UI  VC  VI  VA   CVSS    EPSS   %ile   KEV
   N   H   N   L   A   L   L   N    2.0   .0019    7.5     —

AFFECTED
  Product    Versions     Fixed
  neuvector  unspecified  5.6.2

TIMELINE
  Aug 24  Reserved by suse
  Sep 17  Published (CNA: suse)
  Sep 28  RESCORED — CVE-2026-78426 (SUSE neuvector). CVSS 3.7 → 2 (NVD).

CWE-863 · CNA: suse · CVSS v4.0 · 2 references · NVD status: Awaiting Analysis

Description

The NeuVector JWT verifier accepts noncanonical Base64URL encodings of the same RSA signature field. An attacker holding a valid JWT that has not expired, but was logged out of NeuVector, can continue using the non-expired token with equivalent spelling of the RSA signature field until the token validity expires.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 24, 2026	Reserved	Reserved by suse
September 17, 2026	Published	Published (CNA: suse)
September 28, 2026	RESCORED	RESCORED — CVE-2026-78426 (SUSE neuvector). CVSS 3.7 → 2 (NVD).

Affected

Affected products and packages — 1 row
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
SUSE	neuvector	—	—	5.6.2

Weaknesses

CWE-863

References (2)

Authoritative record: CVE-2026-78426 at cve.org

Vendors: suse

Weaknesses: CWE-863

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-78426 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.