Log in Start free

Vulnerability · Published Aug 27, 2026 · Assigned by vmware

CVE-2026-47892Spring Framework Header Predicate Bypass in WebFlux Functional Endpoints

Critical 9.8

In plain English

A critical-severity incorrect authorization in Spring Framework from Spring. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.5%top 55.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A WebFlux application using functional endpoints and deployed with DispatcherServlet may be vulnerable to a header predicate bypass in a pre-flight request. Spring Framework 7.0.0 - 7.0.8 Spring Framework 6.2.0 - 6.2.19 Spring Framework 6.1.0 - 6.1.28 Spring Framework 6.0.0 - 6.0.30 Spring Framework 5.3.0 - 5.3.49 Spring Framework 5.2.5.RELEASE - 5.2.25.RELEASE

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12libspring-javano fix listedDEBIAN-CVE-2026-47892
Debian:13libspring-javano fix listedDEBIAN-CVE-2026-47892
Debian:14libspring-javano fix listedDEBIAN-CVE-2026-47892
Mavenorg.springframework:spring-webfluxno fix listedGHSA-9qf2-26p9-2q2q
Mavenorg.springframework:spring-webfluxno fix listedGHSA-9qf2-26p9-2q2q
Mavenorg.springframework:spring-webflux7.0.9GHSA-9qf2-26p9-2q2q
Mavenorg.springframework:spring-webfluxno fix listedGHSA-9qf2-26p9-2q2q
Mavenorg.springframework:spring-webfluxno fix listedGHSA-9qf2-26p9-2q2q
Mavenorg.springframework:spring-webfluxno fix listedGHSA-9qf2-26p9-2q2q
Ubuntu:26.04:LTSlibspring-javano fix listedUBUNTU-CVE-2026-47892
Ubuntu:26.10libspring-javano fix listedUBUNTU-CVE-2026-47892

Affected products (as reported)

VendorProductVersions
Spring Spring Framework 7.0.0 – through 7.0.86.2.0 – through 6.2.196.1.0 – through 6.1.286.0.0 – through 6.0.305.3.0 – through 5.3.495.2.5.RELEASE – through 5.2.25.RELEASE

Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References