Skip to content
Fencer Vulns
medium 5.3

CVE-2023-34053 json

Spring Framework server Web Observations DoS Vulnerability

published 2023-11-28 2 y ago modified 2026-06-17 4 mo ago also GHSA-v94h-hvhg-mf9h , EUVD-2023-3041

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

In Spring Framework versions 6.0.0 - 6.0.13, it is possible for a user to provide specially crafted HTTP requests that may cause a denial-of-service (DoS) condition.

Specifically, an application is vulnerable when all of the following are true:

* the application uses Spring MVC or Spring WebFlux * io.micrometer:micrometer-core is on the classpath * an ObservationRegistry is configured in the application to record observations

Typically, Spring Boot applications need the org.springframework.boot:spring-boot-actuator dependency to meet all conditions.

Patch / fix

  • maven org.springframework:spring-webmvc 6.0.14
  • Spring Spring Framework 6.0.14

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2023-34053 updated cvss 7.5

springframework: io.micrometer: micrometer-core classpath vulnerable to denial of service

  • Red Hat build of Apache Camel for Spring Boot 3 springframework springframework Red Hat Data Grid 8 springframework springframework Red Hat Fuse 7 springframework springframework Red Hat JBoss Data Grid 7 springframework springframework Red Hat JBoss Enterprise Application Platform 7 springframework springframework Red Hat streams for Apache Kafka springframework springframework
    not affected: vulnerable code not present “As a temporary workaround, Spring Boot 3.0.x and 3.1.x users can choose to disable web framework observations with the following property: management.metrics.enable.http.server.requests=false”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.16% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
GitHub 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
maven org.springframework:spring-webmvc
>=6.0.0, <6.0.14
6.0.14

Affected products

  • Spring Spring Framework

Classification

Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.