WaratekVRT Sign in

CVE-2020-10719 Undertow

Affected softwareUndertow
Severity6.5 Medium CVSS 3.1 3 scores
Fixed in2.1.1.Final
WeaknessCWE-444
Published26 May 2020
Updated17 Jun 2026

Description

A flaw was found in Undertow in versions before 2.1.1.Final, regarding the processing of invalid HTTP requests with large chunk sizes. This flaw allows an attacker to take advantage of HTTP request smuggling.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 6 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 1.0% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Medium or Low severity, no CISA or VulnCheck KEV listing, no PoC clearing the evidence bar, no CISA verdict, no Oracle advisory
Finding This CVE is MEDIUM severity, is not listed in CISA KEV or VulnCheck KEV, has no public exploit or PoC in any indexed source, carries no CISA Vulnrichment finding of a demonstrated exploit, and is not part of an Oracle Critical Patch Update. None of the signals that would put it in front of an engineer is present, and the volume of CVEs below that bar is too great to take one at a time, so no rule is written for it. This is a decision about what we act on, not a finding that the CVE is harmless — a patch may well be derivable, and a low-severity defect can still be one link in a longer chain.
Candidate fix https://access.redhat.com/security/cve/CVE-2020-10719 : a Red Hat CVE page: the weakest kind, naming no commit, though it shows Red Hat has looked at the CVE

CVSS

6.5 MEDIUM v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N 3 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N secalert@redhat.com Secondary published
CVSS 3.1 6.5 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N NVD Primary
CVSS 2.0 6.4 none AV:N/AC:L/Au:N/C:P/I:P/A:N NVD Primary

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
io.undertow:undertow-core 0 2.1.1.Final unbounded

Products and versions

9 products, 12 version entries
SourceVendorProductSchemeAffected versions
osv io.undertow undertow-core generic < 2.1.1
nvd netapp active iq unified manager generic any version
nvd netapp oncommand insight generic < 7.3.13
nvd netapp oncommand workflow automation generic any version
nvd redhat fuse generic 1.0
nvd redhat jboss enterprise application platform generic any version · 7.2 · 7.3 · 7.4
nvd redhat openshift application runtimes generic any version
nvd redhat single sign-on generic any version
nvd redhat undertow generic < 2.1.1

References

URLTags
https://access.redhat.com/security/cve/CVE-2020-10719 redhat-cve
https://access.redhat.com/errata/RHSA-2020:2058 ADVISORY, RHSA-2020:2058
https://access.redhat.com/errata/RHSA-2020:2059 ADVISORY, RHSA-2020:2059
https://access.redhat.com/errata/RHSA-2020:2060 ADVISORY, RHSA-2020:2060
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10719 WEB
https://security.netapp.com/advisory/ntap-20220210-0014 WEB
https://security.netapp.com/advisory/ntap-20220210-0014/ Third Party Advisory

Timeline

Published2020-05-26By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.