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CVE-2026-22748— Potential Security Misconfiguration when Using withIssuerLocation

Quick assessment

Affected
Spring Spring Security
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Spring Security是Spring开源的一款具有认证和授权功能的安全框架。 Spring Security 6.3.0版本至6.3.14版本、6.4.0版本至6.4.14版本、6.5.0版本至6.5.9版本和7.0.0版本至7.0.4版本存在输入验证错误漏洞，该漏洞源于使用NimbusJwtDecoder或NimbusReactiveJwtDecoder配置JWT解码时未单独配置OAuth2TokenValidator<Jwt>，可能导致安全控制失效。

CVSS 5.3 · Medium EPSS 0.20% · P9

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-22748

Vulnerability Information
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Vulnerability Title
Potential Security Misconfiguration when Using withIssuerLocation
Source: CVE Program / CVE List V5
Vulnerability Description
Vulnerability in Spring Spring Security. When an application configures JWT decoding with NimbusJwtDecoder  or NimbusReactiveJwtDecoder, it must configure an OAuth2TokenValidator<Jwt> separately, for example by calling setJwtValidator.This issue affects Spring Security: from 6.3.0 through 6.3.14, from 6.4.0 through 6.4.14, from 6.5.0 through 6.5.9, from 7.0.0 through 7.0.4.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Spring Security 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Spring Security是Spring开源的一款具有认证和授权功能的安全框架。 Spring Security 6.3.0版本至6.3.14版本、6.4.0版本至6.4.14版本、6.5.0版本至6.5.9版本和7.0.0版本至7.0.4版本存在输入验证错误漏洞，该漏洞源于使用NimbusJwtDecoder或NimbusReactiveJwtDecoder配置JWT解码时未单独配置OAuth2TokenValidator<Jwt>，可能导致安全控制失效。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Spring Spring Security 6.3.0 ~ 6.3.14 -

II. Public POCs for CVE-2026-22748

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III. Intelligence Information for CVE-2026-22748

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Vendor Advisories for CVE-2026-22748 (1)

Same Patch Batch · Spring · 2026-04-22 · 5 CVEs total

CVE-2026-22754 7.5 HIGH ervlet Path Not Correctly Included in Path Matching of XML Authorization Rules
CVE-2026-22753 7.5 HIGH Servlet Path Not Correctly Included in Path Matching of HttpSecurity#securityMatchers
CVE-2026-22747 6.8 MEDIUM Unauthorized User Impersonation when Using X.509 Client Certificates
CVE-2026-22746 3.7 LOW User Attribute Enumeration when Using DaoAuthenticationProvider

IV. Related Vulnerabilities

Same product: Spring Security
Same vendor: Spring

V. Comments for CVE-2026-22748

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