CVE-2021-22051

Name: CVE-2021-22051
Creator: NVD / NIST
Published: 2021-11-08T14:15:07.86+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.67%

Last modified Jun 17, 2026

CVE-2021-22051 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Applications using Spring Cloud Gateway are vulnerable to specifically crafted requests that could make an extra request on downstream services. Users of affected versions should apply the following mitigation: 3.0.x users should upgrade to 3.0.5+, 2.2.x users should upgrade to 2.2.10.RELEASE or newer.. EPSS estimates a 0.67% chance of exploitation in the next 30 days.

Description

Applications using Spring Cloud Gateway are vulnerable to specifically crafted requests that could make an extra request on downstream services. Users of affected versions should apply the following mitigation: 3.0.x users should upgrade to 3.0.5+, 2.2.x users should upgrade to 2.2.10.RELEASE or newer.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.67%

47.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-863

Affected Software

Vendor	Product	Versions
Vmware	Spring Cloud Gateway	< 2.2.10
Vmware	Spring Cloud Gateway	>= 3.0.0, < 3.0.5

References

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

Timeline

Published: Nov 8, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22051?

How severe is CVE-2021-22051?

CVE-2021-22051 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.67% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22051?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22051?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST