CVE-2026-22739: Vulnerability in Spring Cloud when substituting the profile parameter from a request made to the Spring Cloud

This month

HIGH 8.6REMOTEUPGRADE

CVE-2026-22739 is a high-severity flaw (CVSS 8.6) affecting spring cloud config. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in Spring Cloud when substituting the profile parameter from a request made to the Spring Cloud Config Server configured to the native file system as a backend, because it was possible to access files outside of the configured search directories.This issue affects Spring Cloud: from 3.1.X before 3.1.13, from 4.1.X before 4.1.9, from 4.2.X before 4.2.3, from 4.3.X before 4.3.2, from 5.0.X before 5.0.2.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	8.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.2% (top 31%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-03-24
Last modified	2026-09-04

Publisher (CNA): VMware · Vendor: vmware

Last updated 2026-09-04 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-03-24 01:17 UTCPublished CVE record published
2026-09-04 20:04 UTCUpdated Record last modified

vmware spring cloud config UPGRADE

Affected: < 3.1.13 · >= 4.1.0 and < 4.1.9 · >= 4.2.0 and < 4.2.6 · >= 4.3.0 and < 4.3.2 · >= 5.0.0 and < 5.0.2

Fixed in: 3.1.13, 4.1.9, 4.2.6, 4.3.2, 5.0.2

Safe to downgrade to: a release before 4.1.0

1. Check installed version

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

2. UPGRADE to 3.1.13 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade spring-cloud-config

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 4.1.0 (Debian / Ubuntu)

apt-cache madison spring-cloud-config sudo apt install spring-cloud-config=<VERSION_BEFORE_4.1.0> sudo apt-mark hold spring-cloud-config

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

dnf --showduplicates list spring-cloud-config sudo dnf downgrade spring-cloud-config-<VERSION_BEFORE_4.1.0> sudo dnf versionlock add spring-cloud-config

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 Config Server - Path Traversal

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-2026-22739?

spring cloud config: upgrade to 3.1.13, 4.1.9, 4.2.6, 4.3.2, 5.0.2. Exact commands for each OS are on this page.

Is CVE-2026-22739 being exploited?

CVE-2026-22739 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-2026-22739 affect?

CVE-2026-22739 affects spring cloud config. Severity is high (CVSS 8.6). Vulnerability in Spring Cloud when substituting the profile parameter from a request made to the Spring Cloud Config Server configured to the native file system as a backend, because it was possible to access files outside of the configured

How urgent is CVE-2026-22739?

Priority 52/100. High severity; Remotely exploitable, no login, no user action

Software pages

VMware vulnerabilities

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References

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