Spring Security 5.1.0/5.1.1 JWT Issuer Validation data authenticity

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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A vulnerability classified as critical has been found in Spring Security 5.1.0/5.1.1. Affected is some unknown processing of the component JWT Issuer Validation. The manipulation with an unknown input leads to a data authenticity vulnerability. CWE is classifying the issue as CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 12/18/2018. The weakness was released 12/19/2018 (Website). The advisory is available at pivotal.io. This vulnerability is traded as CVE-2018-15801 since 08/23/2018. It is possible to launch the attack remotely. Required for exploitation is a authentication. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 5.1.2 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-200384, VDB-200385, VDB-212578 and VDB-212579.




CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.4
NVD Vector: 🔍

CNA Base Score: 3.3
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Class: Data authenticity
CWE: CWE-345

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Spring Security 5.1.2


08/23/2018 🔍
12/18/2018 +117 days 🔍
12/19/2018 +1 days 🔍
12/19/2018 +0 days 🔍
12/20/2018 +1 days 🔍
06/19/2023 +1642 days 🔍


Advisory: pivotal.io
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-15801 (🔍)
See also: 🔍


Created: 12/20/2018 07:42 AM
Updated: 06/19/2023 08:30 PM
Changes: 12/20/2018 07:42 AM (57), 04/21/2020 09:24 PM (2), 06/19/2023 08:30 PM (14)
Complete: 🔍
Cache ID: 3:A4E:40


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