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.
Published: 2026-09-17
Score: 3.7 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Fri, 18 Sep 2026 03:45:00 +0000

Type Values Removed Values Added
First Time appeared Go
Go neuvector
Vendors & Products Go
Go neuvector

Thu, 17 Sep 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 17 Sep 2026 09:45:00 +0000

Type Values Removed Values Added
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.
Title Logout bypass via alternate JWT spelling
Weaknesses CWE-863
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: suse

Published:

Updated: 2026-09-17T12:40:32.383Z

Reserved: 2026-08-24T15:33:13.665Z

Link: CVE-2026-78426

cve-icon Vulnrichment

Updated: 2026-09-17T12:40:19.623Z

cve-icon NVD

Status : Received

Published: 2026-09-17T10:17:03.520

Modified: 2026-09-17T13:16:47.423

Link: CVE-2026-78426

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-18T03:30:02Z

Weaknesses