CVE-2026-22732 Under Some Conditions Spring Security HTTP Headers Are not Written

Critical 9.1 Published Updated

Attackers may bypass security controls because Spring Security fails to write HTTP response headers in certain servlet application conditions.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2026-22732?

CVE-2026-22732 is a critical vulnerability in VMware Spring Security, published on 19 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

When applications specify HTTP response headers for servlet applications using Spring Security, there is the possibility that the HTTP Headers will not be written.  This issue affects Spring Security Servlet applications using lazy (default) writing of HTTP Headers:

: from 5.7.0 through 5.7.21, from 5.8.0 through 5.8.23, from 6.3.0 through 6.3.14, from 6.4.0 through 6.4.14, from 6.5.0 through 6.5.8, from 7.0.0 through 7.0.3.

Weakness: CWE-425

Which versions are affected by CVE-2026-22732?

12 open source packages ship an affected version, including org.springframework.security:spring-security-web. It affects 1 product.

PackageAffectedFixed in
org.springframework.security:spring-security-web MavenAll versions to 5.7.14None
org.springframework.security:spring-security-web MavenAll versions to 5.7.14None
org.springframework.security:spring-security-web MavenFrom 5.8.0 to 5.8.16None
org.springframework.security:spring-security-web MavenFrom 5.8.0 to 5.8.16None
org.springframework.security:spring-security-web MavenFrom 6.0.0 to 6.3.10None
org.springframework.security:spring-security-web MavenFrom 6.0.0 to 6.3.10None
6 more packages
org.springframework.security:spring-security-web MavenFrom 6.4.0 to 6.4.13None
org.springframework.security:spring-security-web MavenFrom 6.4.0 to 6.4.13None
org.springframework.security:spring-security-web MavenFrom 6.5.06.5.9
org.springframework.security:spring-security-web MavenFrom 6.5.06.5.9
org.springframework.security:spring-security-web MavenFrom 7.0.07.0.4
org.springframework.security:spring-security-web MavenFrom 7.0.07.0.4

Products include Vmware Spring Security.

How do I fix CVE-2026-22732?

Upgrade org.springframework.security:spring-security-web to a fixed version for your release line: 6.5.9 or 7.0.4.

Is CVE-2026-22732 being exploited?

There is no known exploitation of CVE-2026-22732 in the wild and no public exploit code.

Public exploit code: 3 proofs of concept on GitHub.

Sources

Also known as CLEANSTART-2026-AQ60759, CLEANSTART-2026-DZ61403, CLEANSTART-2026-RV47518, CLEANSTART-2026-WO59717, CLSA-2026-1774225197, CLSA-2026-1774398071 and 16 more.

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