CVE-2022-23463: Nepxion Discovery is a solution for Spring Cloud

Q: How do I fix CVE-2022-23463?

discovery: upgrade to newer than 6.16.2. Exact commands for each OS are on this page.

Q: Is CVE-2022-23463 being exploited?

CVE-2022-23463 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-2022-23463 affect?

CVE-2022-23463 affects discovery. Severity is critical (CVSS 9.4). Nepxion Discovery is a solution for Spring Cloud. Discover is vulnerable to SpEL Injection in discovery-commons. DiscoveryExpressionResolver’s eval method is evaluating expression with a StandardEvaluationContext, allowing the expression to

Q: How urgent is CVE-2022-23463?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

CRITICAL 9.4REMOTEUPGRADE

CVE-2022-23463 is a critical-severity flaw (CVSS 9.4) affecting discovery. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Nepxion Discovery is a solution for Spring Cloud. Discover is vulnerable to SpEL Injection in discovery-commons. DiscoveryExpressionResolver’s eval method is evaluating expression with a StandardEvaluationContext, allowing the expression to reach and interact with Java classes such as java.lang.Runtime, leading to Remote Code Execution. There is no patch available for this issue at time of publication. There are no known workarounds.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.4 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.3% (top 17%)
CISA exploited list	No
Weakness	CWE-917
Published	2022-09-24
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: nepxion

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

Am I affected?

Timeline

2022-09-24 05:15 UTCPublished CVE record published
2026-06-17 04:30 UTCUpdated Record last modified

nepxion discovery UPGRADE

Affected: <= 6.16.2

Fixed in: newer than 6.16.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy discovery || rpm -q discovery || discovery --version

2. UPGRADE to newer than 6.16.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade discovery

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade discovery

Note

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

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-2022-23463?

discovery: upgrade to newer than 6.16.2. Exact commands for each OS are on this page.

Is CVE-2022-23463 being exploited?

CVE-2022-23463 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-2022-23463 affect?

CVE-2022-23463 affects discovery. Severity is critical (CVSS 9.4). Nepxion Discovery is a solution for Spring Cloud. Discover is vulnerable to SpEL Injection in discovery-commons. DiscoveryExpressionResolver’s eval method is evaluating expression with a StandardEvaluationContext, allowing the expression to

How urgent is CVE-2022-23463?

Priority 64/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

Java vulnerabilities

Related CVEs

CVE-2026-58016 HIGH 7.5 UPGRADE UPGRADE A flaw was found in GLib
CVE-2024-12088 MEDIUM 6.5 UPGRADE DOWNGRADE A flaw was found in rsync
CVE-2024-23688 MEDIUM 5.3 UPGRADE Consensys Discovery versions less than 0.4.5 uses the same AES/GCM nonce for the entire session
CVE-2022-23464 MEDIUM 4.3 UPGRADE Nepxion Discovery is a solution for Spring Cloud

References

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