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Fencer Intel
no cvss —

CVE-2026-3260 json

The Undertow web server enforces a default maximum HTTP request entity size limit.

published 7mo ago modified 4mo ago

Withdrawn or rejected on

Its source no longer considers this a valid vulnerability. It stays here so links keep working, and it is left out of feeds.

cvss
—
not scored
cisa kev
Not listed
not in CISA's catalog
epss
—
no EPSS score yet
public exploits
0
none known

Summary

The Undertow web server enforces a default maximum HTTP request entity size limit. Any request (including GET or HEAD) containing a body that exceeds this configurable limit is safely dropped by the server, preventing single-request Resource Exhaustion (Out of Memory) Denial of Service attacks.

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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-2026-3260 updated

undertow: Undertow: Denial of Service due to premature multipart/form-data parsing in GET requests

  • Red Hat build of Apache Camel - HawtIO 4 undertow-core Red Hat build of Apache Camel for Spring Boot 4 undertow-core Red Hat Data Grid 8 undertow-core Red Hat Enterprise Linux 8 resteasy, resteasy-javadoc Red Hat Enterprise Linux 9 resteasy, pki-resteasy-core, pki-resteasy-client, pki-resteasy-jackson2-provider, pki-resteasy-servlet-initializer Red Hat Enterprise Linux 10 moditect
    +6 more products
    Red Hat Fuse 7 undertow-core Red Hat JBoss Enterprise Application Platform 7 undertow-core Red Hat JBoss Enterprise Application Platform 8 undertow-core, org.jberet-jberet-parent, org.jboss.eap-jboss-eap-xp Red Hat JBoss Enterprise Application Platform Expansion Pack undertow-core, org.jberet-jberet-parent, org.jboss.eap-jboss-eap-xp Red Hat Process Automation 7 undertow-core Red Hat Single Sign-On 7 undertow-core
    affected: workaround, no fix available “Fix deferred”

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

Sources

Fencer Intel 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.