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Vulnerability record · CVE-2018-15801 · published 19 December 2018

CVE-2018-15801: Vmware spring framework insufficient verification of data authenticity vulnerability

Vmware · Spring Framework

Spring Security versions 5.1.x prior to 5.1.2 contain an authorization bypass vulnerability during JWT issuer validation. In order to be impacted, the same private key for an honest issuer and a malicious user must be used when signing JWTs. In that case, a malicious user could fashion signed JWTs with the malicious issuer URL that may be granted for the honest issuer.

7.4 CVSS 3.1 High EPSS 0.65% · top 50.7% CWE-345 · Insufficient verification of data authenticity
7.4CVSS 3.1 base score, v2 5.8
0.65%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Spring Security versions 5.1.x prior to 5.1.2 contain an authorization bypass vulnerability during JWT issuer validation. In order to be impacted, the same private key for an honest issuer and a malicious user must be used when signing JWTs. In that case, a malicious user could fashion signed JWTs with the malicious issuer URL that may be granted for the honest issuer.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://pivotal.io/security/cve-2018-15801 Vendor Advisory
https://pivotal.io/security/cve-2018-15801 Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-15801), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.