CVE-2024-38809 — Applications that parse ETags from "If-Match" or "If-None-Match" request headers

Applications that parse ETags from "If-Match" or "If-None-Match" request headers are vulnerable to DoS attack.

01What is this vulnerability?

Applications that parse ETags from "If-Match" or "If-None-Match" request headers are vulnerable to DoS attack.

02Affected products

Vendor	Product	Versions
N	A / Spring Framework	6.1.0 - 6.1.11, 6.0.0 - 6.0.22, 5.3.0 - 5.3.37

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-09-27T16:39:52.644Z
• Last modified: 2024-09-27T19:19:01.160Z

09References

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