How severe is CVE-2021-22053?

CVE-2021-22053 has a CVSS score of 8.8/10, rated HIGH. Immediate patching is strongly recommended.

How do I fix CVE-2021-22053?

Update org.springframework.cloud:spring-cloud-netflix-hystrix-dashboard to 2.2.10.RELEASE or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-22053 is resolved across your whole dependency graph.

How do I mitigate CVE-2021-22053 if there is no patch (or I can't update yet)?

Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

Is CVE-2021-22053 actively exploited in the wild?

Yes. There are 3 known exploit references for CVE-2021-22053, including 2 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2021-22053?

CVE-2021-22053 has an EPSS (Exploit Prediction Scoring System) score of 13.2%, placing it in the 96th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score warrants monitoring and prompt remediation.

What type of vulnerability is CVE-2021-22053?

CVE-2021-22053 is classified as Code Injection (CWE-94). This weakness type describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation. This is a high-impact weakness class that often enables remote code execution or data exposure.

Is there exploit tooling available for CVE-2021-22053?

A Nuclei detection template exists for CVE-2021-22053, meaning automated scanners can fingerprint it. Public exploit tooling significantly increases real-world risk — prioritize patching and ensure detection coverage. Exploit tooling should only ever be used in isolated, authorized testing environments.

When was CVE-2021-22053 published, and has it been updated?

CVE-2021-22053 was published on November 19, 2021 and was last updated on July 8, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

☕

☕ Maven

Not in CISA KEV

HIGH severity

CVE-2021-22053 — spring-cloud-netflix-hyst…

HIGH

CVE-2021-22053 is a high-severity (CVSS 8.8) Code Injection vulnerability in org.springframework.cloud:spring-cloud-netflix-hystrix-dashboard. 3 public exploit references exist, so weaponization risk is real. A fix is available for org.springframework.cloud:spring-cloud-netflix-hystrix-dashboard — see the affected versions and patch details below.

Code injection in spring-cloud-netflix-hystrix-dashboard

Also known asGHSA-gx3f-hq7p-8fxv

Published

Nov 19, 2021

Updated

Jul 8, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

3 known

Exploitation data as of Oct 7, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗

13.2%probability of exploitation in next 30 days

Moderate Risk+0.54%

Lower risk than most CVEs96th percentile — riskier than 96% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

CVE-2021-22053 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,386 CVEs with a current EPSS score, this one falls in the 10–50% band (highlighted). Counts from FIRST.org, log-scaled.

Real-World Exposure

1 pkg affected

☕org.springframework.cloud:spring-cloud-netflix-hystrix-dashboard

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

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.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
☕Maven	`org.springframework.cloud:spring-cloud-netflix-hystrix-dashboard`	all versions	2.2.10.RELEASE`org.springframework.cloud:spring-cloud-netflix-hystrix-dashboard:2.2.10.RELEASE`

Affected Products

1 product · 1 configurations

Application

spring cloud netflixvmware

≥ 2.2.0 && < 2.2.10

range

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

Applications using both `spring-cloud-netflix-hystrix-dashboard` and `sp…

github.comGithubNov 2021

Applications using both `spring-cloud-netflix-hystrix-dashboard` and `sp…

unit42.paloaltonetworks.comAPIMay 2022

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.springframework.cloud:spring-cloud-netflix-hystrix-dashboard, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update org.springframework.cloud:spring-cloud-netflix-hystrix-dashboard to 2.2.10.RELEASE or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2021-22053 is resolved across your whole dependency graph.
Workarounds
Stop passing untrusted input into the interpreter or shell: call the affected binary with an argument array rather than a composed command string, reject anything outside a strict allowlist of expected values, and run the component under an account that cannot reach beyond the work it legitimately does.

How to detect CVE-2021-22053

A community-maintained Nuclei template exists for this CVE. You can scan for it directly:

nuclei -id cve-2021-22053 -u https://target

Template: Spring Cloud Netflix Hystrix Dashboard <2.2.10 - Remote Code Execution
Severity: high
Impact: Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the target system.
Remediation: Upgrade to Spring Cloud Netflix Hystrix Dashboard version 2.2.10 or later to mitigate this vulnerability.

Template by ProjectDiscovery nuclei-templates (forgedhallpass), MIT licensed. View the full template. Scan only systems you are authorised to test.

Frequently Asked Questions

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.

O3 Security · Impact-Aware SCA

Is CVE-2021-22053 in your dependencies?

Find it across Maven, including transitive dependencies.

Scan my dependencies How O3 SCA works

CVSS Score

8.8/10CVSS v3 base

Vector breakdown

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Raw vector

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

CWE Classification

Weaponization

Timeline

Disclosed

Nov 19, 2021

First exploit

Nov 21, 2021

2 days after disclosure — rapid exploitation

Last updated

Jul 8, 2026

Identifiers

CVE-2021-22053

GHSA-gx3f-hq7p-8fxv

References

Advisorytanzu.vmware.com Advisorynvd.nist.gov

Related vulnerabilities

This CVE is high severity; 7 of 8 other CVEs with CWE-94 are rated as high or higher (top: critical).

CVE-2026-77281CVE-2026-69088CVE-2026-75827CVE-2026-45140CVE-2026-72819CVE-2026-86083CVE-2026-88062CVE-2026-86076Browse all CWE-94

Provenance

Sources

OSV.devNVDFIRST.org (EPSS)

Last verifiedJul 8, 2026

CVE-2021-22053 — spring-cloud-netflix-hyst…

EPSS Exploitation Probability

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

Description

Affected Packages

Affected Products

Detection & mitigation playbook

Detect

Fix

Workarounds

How to detect CVE-2021-22053

Frequently Asked Questions

Is CVE-2021-22053 in your dependencies?