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CVE-2021-22044

24
FAUCET Score

CVE-2021-22044 describes an information disclosure vulnerability in Spring Cloud OpenFeign versions 3.0.0 to 3.0.4 and 2.2.0.RELEASE to 2.2.9.RELEASE, where applications using type-level @RequestMapping annotations on Feign client interfaces can inadvertently expose corresponding endpoints. This vulnerability carries a CVSS score of 7.5 (High), indicating a network-based attack with low complexity, requiring no user interaction, and potentially leading to high confidentiality impact. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.2.0, <= 2.2.9CPE matchmatch criteria
cpe:2.3:a:vmware:spring_cloud_openfeign:*:*:*:*:*:*:*:*
>= 3.0.0, <= 3.0.4CPE matchmatch criteria
cpe:2.3:a:vmware:spring_cloud_openfeign:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.06%
Probability of exploitation in next 30 days
EPSS Percentile
61.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0106 is in the 38th percentile among its peer group of 51,506 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

mavenpatch availablevia ghsa
Product: org.springframework.cloud:spring-cloud-openfeign-coreFixed in: 3.0.5
mavenpatch availablevia ghsa
Product: org.springframework.cloud:spring-cloud-openfeign-coreFixed in: 2.2.10

Vendor Advisories (1)

mavenGHSA-pf94-6v2v-cm3jhigh

Exposure of Resource to Wrong Sphere in Spring Cloud OpenFeign

May 24, 2022

References

tanzu.vmware.com / security/cve-2021-22044
Vendor Advisory