Spring Boot has an Authentication Bypass under Actuator CloudFoundry endpoints

CVE-2026-22733 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

Spring Boot applications with Actuator can be vulnerable to an "Authentication Bypass" vulnerability when an application endpoint that requires authentication is declared under the path used by the CloudFoundry Actuator endpoints. This issue affects Spring Security: from 4.0.0 through 4.0.3, from 3.5.0 through 3.5.11, from 3.4.0 through 3.4.14, from 3.3.0 through 3.3.17, from 2.7.0 through 2.7.31.

Basic information

Type
reviewed
Severity
high
Advisory on GitHub
Open advisory ↗
Repository advisory
—
Source code
Browse source ↗
Published (advisory)
2026-03-20 00:31:28 UTC
Updated
2026-03-20 20:42:32 UTC
GitHub reviewed
2026-03-20 20:42:31 UTC
NVD published
2026-03-19

EPSS Score

Score Percentile
0.05% 16.31%

CVSS Scores

Base score Version Severity Vector
8.2 3.1 —
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.

Identifiers

Type Value
GHSA GHSA-mgvc-8q2h-5pgc ↗
CVE CVE-2026-22733 ↗

CWEs

CWE id Name
CWE-288 Authentication Bypass Using an Alternate Path or Channel

Affected packages (5)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
maven org.springframework.boot:spring-boot-starter-actuator >= 4.0.0-M1, < 4.0.4 4.0.4 —
maven org.springframework.boot:spring-boot-starter-actuator >= 3.5.0, < 3.5.12 3.5.12 —
maven org.springframework.boot:spring-boot-starter-actuator >= 3.4.0, <= 3.4.13 — —
maven org.springframework.boot:spring-boot-starter-actuator >= 3.0.0, <= 3.3.13 — —
maven org.springframework.boot:spring-boot-starter-actuator <= 2.7.18 — —

References

cvelogic Threat Intelligence