CVE-2021-22053: Applications using both `spring-cloud-netflix-hystrix-dashboard` and `spring-boot-starter-thymeleaf` expose a

Q: How do I fix CVE-2021-22053?

spring cloud netflix: upgrade to 2.2.10. Exact commands for each OS are on this page.

Q: Is CVE-2021-22053 being exploited?

CVE-2021-22053 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-22053 affect?

CVE-2021-22053 affects spring cloud netflix. Severity is high (CVSS 8.8). Applications using both `spring-cloud-netflix-hystrix-dashboard` and `spring-boot-starter-thymeleaf` expose a way to execute code submitted within the request URI path during the resolution of view templates. When a request is made at `/hys

Q: How urgent is CVE-2021-22053?

Priority 55/100. High severity; EPSS top 4%: very likely to be exploited

This week

HIGH 8.8UPGRADE

CVE-2021-22053 is a high-severity flaw (CVSS 8.8) affecting spring cloud netflix. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Applications using both `spring-cloud-netflix-hystrix-dashboard` and `spring-boot-starter-thymeleaf` expose a way to execute code submitted within the request URI path during the resolution of view templates. When a request is made at `/hystrix/monitor;[user-provided data]`, the path elements following `hystrix/monitor` are being evaluated as SpringEL expressions, which can lead to code execution.

Why this priority

High severity
EPSS top 4%: very likely to be exploited

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	13.2% (top 4%)
CISA exploited list	No
Weakness	CWE-94
Published	2021-11-19
Last modified	2026-06-17

Publisher (CNA): VMware · Vendor: vmware

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-11-19 16:15 UTCPublished CVE record published
2026-06-17 03:36 UTCUpdated Record last modified

vmware spring cloud netflix UPGRADE

Affected: >= 2.2.0 and < 2.2.10

Fixed in: 2.2.10

Safe to downgrade to: a release before 2.2.0

1. Check installed version

apt-cache policy spring-cloud-netflix || rpm -q spring-cloud-netflix || spring-cloud-netflix --version

2. UPGRADE to 2.2.10 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade spring-cloud-netflix

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade spring-cloud-netflix

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 2.2.0 (Debian / Ubuntu)

apt-cache madison spring-cloud-netflix sudo apt install spring-cloud-netflix=<VERSION_BEFORE_2.2.0> sudo apt-mark hold spring-cloud-netflix

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list spring-cloud-netflix sudo dnf downgrade spring-cloud-netflix-<VERSION_BEFORE_2.2.0> sudo dnf versionlock add spring-cloud-netflix

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: Spring Cloud Netflix Hystrix Dashboard <2.2.10 - Remote Code Execution

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-22053?

spring cloud netflix: upgrade to 2.2.10. Exact commands for each OS are on this page.

Is CVE-2021-22053 being exploited?

CVE-2021-22053 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-22053 affect?

CVE-2021-22053 affects spring cloud netflix. Severity is high (CVSS 8.8). Applications using both `spring-cloud-netflix-hystrix-dashboard` and `spring-boot-starter-thymeleaf` expose a way to execute code submitted within the request URI path during the resolution of view templates. When a request is made at `/hys

How urgent is CVE-2021-22053?

Priority 55/100. High severity; EPSS top 4%: very likely to be exploited

Software pages

VMware vulnerabilities

Related CVEs

CVE-2020-5412 MEDIUM 6.5 UPGRADE Spring Cloud Netflix, versions 2.2.x prior to 2.2.4, versions 2.1.x prior to 2.1.6, and older unsupported vers

References

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