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Advisory record · GHSA-mgvc-8q2h-5pgc

Spring Boot has an Authentication Bypass under Actuator CloudFoundry endpoints

CVSS 8.2 HighEPSS 0.0037 · 31st percentile

Published by the GitHub Advisory Database at 20 Mar 2026, 00:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.springframework.boot:spring-boot-starter-actuatorMaven>=4.0.0-M1, <4.0.4 || >=3.5.0, <3.5.12 || >=3.4.0, <=3.4.13 || >=3.0.0, <=3.3.13 || <=2.7.184.0.4, 3.5.12
Identifiers
GHSA-mgvc-8q2h-5pgc · CVE-2026-22733
Weakness (CWE)
CWE-288
Tags
Published
20 Mar 2026
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

spring-boot-starter-actuator can bypass authentication when an endpoint that requires authentication is declared under the path used by the CloudFoundry Actuator endpoints. Affected versions include 4.0.0 to 4.0.3 and 3.5.0 to 3.5.11, among others. Upgrade to 4.0.4 or 3.5.12, or avoid declaring protected endpoints under the CloudFoundry Actuator path.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
8.2 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N CNA (vmware)
  • CISA KEV Not listed.
  • EPSS 0.0037, the 31st percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:17 UTC First seen by agentprime
  2. 31 Oct 2026, 14:17 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.