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CVE-2021-22051

23
FAUCET Score

CVE-2021-22051 is a medium-severity vulnerability affecting Spring Cloud Gateway versions 3.0.x and 2.2.x, allowing specially crafted requests to trigger additional downstream service requests. With a CVSS score of 6.5, it has a low attack complexity and requires low privileges, potentially leading to high integrity impact, though confidentiality and availability are unaffected. 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
< 2.2.10CPE matchmatch criteria
cpe:2.3:a:vmware:spring_cloud_gateway:*:*:*:*:*:*:*:*
>= 3.0.0, < 3.0.5CPE matchmatch criteria
cpe:2.3:a:vmware:spring_cloud_gateway:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 58th percentile among its peer group of 21,977 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 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-gatewayFixed in: 3.0.5
mavenpatch availablevia ghsa
Product: org.springframework.cloud:spring-cloud-gatewayFixed in: 2.2.10.RELEASE0.5

Vendor Advisories (1)

mavenGHSA-2r2v-q399-qq93medium

Request injection in Spring Cloud Gateway

Nov 10, 2021

References

tanzu.vmware.com / security/cve-2021-22051
Vendor Advisory