CVE-2026-47837
Spring Cloud Config Server Monitor Endpoint Does Not Validate Webhook Requests
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- High
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Spring Cloud Config Server Monitor Endpoint Does Not Validate Webhook Requests
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.
- Record
CVE-2026-47837- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
EUVDEUVD-2026-66638
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.
- Record
EUVD-2026-66638- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-9w38-hp46-g6xj
Missing Authentication for Critical Function vulnerability in Spring Spring Cloud Config allows...
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.
- Record
GHSA-9w38-hp46-g6xj- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-47837- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
OSV
Spring Cloud Config Server Monitor Endpoint Does Not Validate Webhook Requests
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.
- Record
CVE-2026-47837- CVSS 3.1
- 6.8 Medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H - Weakness
- CWE-306
- Updated
- 2026-11-02
OSVCLSA-2026-1793206618 No score
TuxCare security update for org.springframework.cloud:spring-cloud-config-server (3 CVEs)
TuxCare rebuilt org.springframework.cloud:spring-cloud-config-server to address 3 CVEs. Fixed in 4.3.4-tuxcare.1.
- Record
CLSA-2026-1793206618- Updated
- 2026-11-02
OSVCLSA-2026-1793283637 No score
TuxCare security update for org.springframework.cloud:spring-cloud-config-server (7 CVEs)
TuxCare rebuilt org.springframework.cloud:spring-cloud-config-server to address 7 CVEs. Fixed in 4.2.4-tuxcare.1.
- Record
CLSA-2026-1793283637- Updated
- 2026-11-02
OSVCLSA-2026-1793794350 No score
TuxCare security update for org.springframework.cloud:spring-cloud-config-server (7 CVEs)
TuxCare rebuilt org.springframework.cloud:spring-cloud-config-server to address 7 CVEs. Fixed in 3.1.10-tuxcare.1.
- Record
CLSA-2026-1793794350- Updated
- 2026-11-04
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.springframework.cloud:spring-cloud-config-serverTuxCare:Maven From an advisory covering 3 CVEs |
4.3.4 up to 4.3.4-tuxcare.1 | 4.3.4-tuxcare.1 |
org.springframework.cloud:spring-cloud-config-serverTuxCare:Maven From an advisory covering 7 CVEs |
4.2.4 up to 4.2.4-tuxcare.1 | 4.2.4-tuxcare.1 |
org.springframework.cloud:spring-cloud-config-serverTuxCare:Maven From an advisory covering 7 CVEs |
3.1.10 up to 3.1.10-tuxcare.1 | 3.1.10-tuxcare.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| affected, aliases, facts | OSV | |
| affected, aliases, published | EUVD, OSV | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-47837 is a medium vulnerability (CVSS 6.8) in Spring Cloud Config, published August 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.55%, the 46th percentile. No source names a fixed version.