---
title: "CVE-2026-40982: Spring Cloud Config vulnerable to Path Traversal"
url: https://erroneo.us/security/cve/CVE-2026-40982/
description: "CVE-2026-40982 (org.springframework.cloud:spring-cloud-config-server (Maven)): Spring Cloud Config allows applications to serve arbitrary text and binary…"
type: vulnerability-record
section: "Security Digest"
date_published: 2026-05-07
date_modified: 2026-07-15
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2026-40982"
kev: false
cvss: 9.1
epss: 0.00819
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2026-40982: Spring Cloud Config vulnerable to Path Traversal

**Signal:** Critical and remotely reachable. No known exploitation yet, but it is network-reachable without credentials. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
- EPSS 0.8% , percentile 57: FIRST’s model estimates a 0.8% chance of exploitation activity in the next 30 days, higher than 57% of all scored CVEs (moderate). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
- Only applies if your dependency tree includes org.springframework.cloud:spring-cloud-config-server (Maven) >= 4.1.0, <= 4.1.9, no fixed version listed ; org.springframework.cloud:spring-cloud-config-server (Maven) >= 4.2.0, <= 4.2.6, no fixed version listed ; org.springframework.cloud:spring-cloud-config-server (Maven) >= 4.3.0, <= 4.3.2, fixed in 4.3.3 ; org.springframework.cloud:spring-cloud-config-server (Maven) >= 5.0.0, <= 5.0.2, fixed in 5.0.3 . Check your lockfile, including transitive dependencies.

## What it is

Spring Cloud Config allows applications to serve arbitrary text and binary files through the spring-cloud-config-server module. A malicious user, or attacker, can send a request using a specially crafted URL that can lead to a directory traversal attack. Spring Cloud Config 3.1.x: affected from 3.1.0 through 3.1.13 (inclusive); upgrade to 3.1.14 or greater (Enterprise Support Only). Spring Cloud Config 4.1.x: affected from 4.1.0 through 4.1.9 (inclusive); upgrade to 4.1.10 or greater (Enterprise Support Only). Spring Cloud Config 4.2.x: affected from 4.2.0 through 4.2.6 (inclusive); upgrade to 4.2.7 or greater (Enterprise Support Only). Spring Cloud Config 4.3.x: affected from 4.3.0 through 4.3.2 (inclusive); upgrade to 4.3.3 or greater. Spring Cloud Config 5.0.x: affected from 5.0.0 through 5.0.2 (inclusive); upgrade to 5.0.3 or greater.

## Affected packages

- Maven `org.springframework.cloud:spring-cloud-config-server` >= 4.1.0, <= 4.1.9 → fixed: none listed
- Maven `org.springframework.cloud:spring-cloud-config-server` >= 4.2.0, <= 4.2.6 → fixed: none listed
- Maven `org.springframework.cloud:spring-cloud-config-server` >= 4.3.0, <= 4.3.2 → fixed: 4.3.3
- Maven `org.springframework.cloud:spring-cloud-config-server` >= 5.0.0, <= 5.0.2 → fixed: 5.0.3
- Maven `org.springframework.cloud:spring-cloud-config-server` <= 3.1.13 → fixed: none listed

## Affected products (CVE record)

- Spring Spring Cloud Config: 3.1.0 < 3.1.14, 4.1.0 < 4.1.10, 4.2.0 < 4.2.7, 4.3.0 < 4.3.3, 5.0.0 < 5.0.3

## Severity

- vmware CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`
- redhat-SADP CVSS 3.1: 8.2 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N`
- GitHub CVSS 3.1: 9.1 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N`

## Exploitation

- CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
- CISA SSVC assessment: exploitation none , automatable yes , technical impact total .
- FIRST EPSS (model of 2026-10-21): 0.82% probability of exploitation activity in the next 30 days; percentile 57.

## Sources

- [GitHub Advisory GHSA-6g23-24mc-hx6x](https://github.com/advisories/GHSA-6g23-24mc-hx6x)
- [CVE.org record CVE-2026-40982](https://www.cve.org/CVERecord?id=CVE-2026-40982)
- [NVD entry CVE-2026-40982](https://nvd.nist.gov/vuln/detail/CVE-2026-40982)
- [spring.io](https://spring.io/security/cve-2026-40982)
- [access.redhat.com](https://access.redhat.com/security/cve/CVE-2026-40982)
- [RHBZ#2467619](https://bugzilla.redhat.com/show_bug.cgi?id=2467619)
- [security.access.redhat.com](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40982.json)

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Source page: https://erroneo.us/security/cve/CVE-2026-40982/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt