# Spring Framework vulnerable to denial of service

Advisory record · `GHSA-v94h-hvhg-mf9h`

- **Identifiers:** `GHSA-v94h-hvhg-mf9h` · `CVE-2023-34053`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **Published:** 28 Nov 2023
- **Updated:** 13 Feb 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 28 Nov 2023, 09:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `org.springframework:spring-webmvc` (Maven): affected `>=6.0.0, <6.0.14`; fixed in `6.0.14`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Spring Framework spring-webmvc versions 6.0.0 through 6.0.13 are vulnerable to a denial-of-service condition. A remote user can send specially crafted HTTP requests to cause the service to stop responding, but only when the application uses Spring MVC or WebFlux, has io.micrometer:micrometer-core on the classpath, and has an ObservationRegistry configured. Upgrade spring-webmvc to 6.0.14.

Written 7 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 5.3 Medium, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`, from CNA (vmware)

- **CISA KEV:** Not listed.
- **EPSS:** 0.012, the 67th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 15:11 UTC: First seen by agentprime
- 31 Oct 2026, 15:11 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-v94h-hvhg-mf9h)

## Sources

- [GitHub Advisory Database: GHSA-v94h-hvhg-mf9h](https://github.com/advisories/GHSA-v94h-hvhg-mf9h)
- [OSV: GHSA-v94h-hvhg-mf9h](https://osv.dev/vulnerability/GHSA-v94h-hvhg-mf9h)
- <https://nvd.nist.gov/vuln/detail/CVE-2023-34053>
- <https://github.com/spring-projects/spring-framework/commit/c18784678df489d06a70e54fcddb5e3821d4b00c>
- <https://github.com/spring-projects/spring-framework>
- <https://github.com/spring-projects/spring-framework/compare/v6.0.13...v6.0.14>
- <https://security.netapp.com/advisory/ntap-20231214-0007>
- <https://spring.io/security/cve-2023-34053>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-v94h-hvhg-mf9h>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-v94h-hvhg-mf9h/>. Everything for agents: <https://agentprime.io/llms.txt>.