cve.bz

CVE-2020-10687

4.8 mediumEPSS 1.2%

Medium (4.8) in redhat. EPSS 1.2% chance of exploitation in the next 30 days. Fixed in io.undertow:undertow-core 2.2.0.Final.

A flaw was discovered in all versions of Undertow before Undertow 2.2.0.Final, where HTTP request smuggling related to CVE-2017-2666 is possible against HTTP/1.x and HTTP/2 due to permitting invalid characters in an HTTP request. This flaw allows an attacker to poison a web-cache, perform an XSS attack, or obtain sensitive information from request other than their own.

Severity

CVSS 3.1

4.8 medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS
1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
CWE
CWE-444
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-p9w3-gwc2-cr49Mavenio.undertow:undertow-core<2.2.0.Final2.2.0.Final

References

Check your stackJSON