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No exploitation reportedFix available

CVE-2026-47837

No exploitation reported by the sources we read.

  • Published2026-08-26
  • Fixed in5.0.5 · 4.3.5 · 4.2.9 · 3.1.15
  • WeaknessCWE-306

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Missing Authentication for Critical Function vulnerability in Spring Spring Cloud Config allows Webhook requests to Spring Cloud Config Server's /monitor endpoint are not validated. This issue affects Spring Cloud Config: from 5.0.0 through 5.0.4, from 4.3.0 through 4.3.4, from 4.0.0 through 4.2.8, and through 3.1.14.

Timeline

dates in UTC
  1. 2026-08-2618:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-11-03 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-47837?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-47837?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Vmware spring cloud config
BranchAffectedFixed in
5.0≥ 5.0.0, < 5.0.55.0.5
4.3≥ 4.3.0, < 4.3.54.3.5
4.x≥ 4.0.0, < 4.2.94.2.9
3.1< 3.1.153.1.15

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As vmware, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • Spring Cloud Configother versions: not affected
    Affected
    • ≥ 5.0.0, ≤ 5.0.4no fix statedcustom
    • ≥ 4.3.0, ≤ 4.3.4no fix statedcustom
    • ≥ 4.0.0, ≤ 4.2.8no fix statedcustom
    • ≤ 3.1.14no fix statedcustom

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-08-26

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Packages

  • org.springframework.cloud:spring-cloud-config-serverTuxCare:Mavenfrom 4.2.4 · fixed in 4.2.4-tuxcare.1
  • org.springframework.cloud:spring-cloud-config-serverTuxCare:Mavenfrom 4.3.4 · fixed in 4.3.4-tuxcare.1

Vendor advisories

  • CVE-2026-47837 Red Hat Product Security

    org.springframework.cloud/spring-cloud-config-server: Spring Cloud Config Server: Denial of Service via unauthenticated monitor endpoint

Full record on NVD

Fix

  1. Update Vmware spring cloud config to 5.0.5 · 4.3.5 · 4.2.9 · 3.1.15

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published
2026-08-26
Last Modified
2026-09-04
NVD status
Analyzed
GitHub Advisory
GHSA-9w38-hp46-g6xj

Frequently asked questions

What is CVE-2026-47837?

Missing Authentication for Critical Function vulnerability in Spring Spring Cloud Config allows Webhook requests to Spring Cloud Config Server's /monitor endpoint are not validated. This issue affects Spring Cloud Config: from 5.0.0 through 5.0.4, from 4.3.0 through 4.3.4, from 4.0.0 through 4.2.8, and through 3.1.14.

Is CVE-2026-47837 actively exploited?

Active exploitation of CVE-2026-47837 has not been confirmed. Its EPSS score was 0.6% on 2026-11-03, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-47837?

CVE-2026-47837 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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Sources for this record