7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

CVE ID

CVE-2021-22044

GHSA ID

GHSA-pf94-6v2v-cm3j

EPSS Score

0.57454%

CWE

CWE-668

Published

5/24/2022

Updated

1/27/2023

KEV Status

Technology

Java

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

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CVE-2021-22044

CVE-2021-22044: Exposure of Resource to Wrong Sphere in Spring Cloud OpenFeign

In Spring Cloud OpenFeign 3.0.0 to 3.0.4, 2.2.0.RELEASE to 2.2.9.RELEASE, and older unsupported versions, applications using type-level @RequestMappingannotations over Feign client interfaces, can be involuntarily exposing endpoints corresponding to @RequestMapping-annotated interface methods.

(GitHub Advisory)

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CVE-2021-22044

CVE-2021-22044:

7.5

CVSS Score

3.1

-

CVSS Score

Basic Information

CVE ID

CVE-2021-22044

GHSA ID

GHSA-pf94-6v2v-cm3j

EPSS Score

0.57454%

CWE

CWE-668

Published

5/24/2022

Updated

1/27/2023

KEV Status

Technology

Java

Basic Information

CVE ID

GHSA ID

EPSS Score

CWE

Published

Updated

KEV Status

Technology

Technical Details

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Package Name	Ecosystem	Vulnerable Versions	First Patched Version
org.springframework.cloud:spring-cloud-openfeign-core	maven	>= 3.0.0, <= 3.0.4	3.0.5
org.springframework.cloud:spring-cloud-openfeign-core	maven	>= 2.2.0, <= 2.2.9	2.2.10

Technical Details

Vulnerability Intelligence
Miggo AI

Root Cause Analysis

The vulnerability stems from processing class-level @RequestMapping annotations on Feign client interfaces. The key vulnerable functions are:

processAnnotationOnClass: Directly handled class-level path mapping through the removed path prepending logic
parseAndValidateMetadata: Indirectly enabled exposure through class-level header/produces/consumes inheritance Both were modified in the patch to reject class-level annotations and remove inheritance behavior. These functions would appear in stack traces when Spring processes Feign client interfaces with type-level @RequestMapping annotations, as they're responsible for translating annotations into HTTP endpoint mappings.

Vulnerable functions

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WAF Protection Rules

WAF Rule

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Reasoning

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7.5

-

Basic Information

Basic Information

Concerned about an active attack path?

CVE-2021-22044: Exposure of Resource to Wrong Sphere in Spring Cloud OpenFeign

CVE-2021-22044:

7.5

-

Basic Information

Basic Information

Technical Details

Technical Details

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Vulnerability IntelligenceMiggo AI

7.5

7.5

CVE-2021-22044: Exposure of Resource to Wrong Sphere in Spring Cloud OpenFeign

Vulnerability IntelligenceMiggo AI

Root Cause Analysis

Vulnerable functions

WAF Protection Rules

WAF Rule

Reasoning

Basic Information

Basic Information

Technical Details

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI

Vulnerability Intelligence
Miggo AI