Lucene search
+L

CVE-2026-19879

🗓️ 14 Aug 2026 14:51:36Reported by Debian Security Bug TrackerType 
debiancve
 debiancve
🔗 security-tracker.debian.org👁 4 Views

Undertow writeString() silently narrows Unicode chars to bytes in response headers, causing truncation and limited integrity or info disclosure impact.

Related
Packages
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-19879
14 Aug 202614:51
attackerkb
cve
CVE
CVE-2026-19879
14 Aug 202614:51
cve
cvelist
Cvelist
CVE-2026-19879 Io.undertow/undertow: undertow: http response header integrity issue due to character truncation
14 Aug 202614:51
cvelist
euvd
EUVD
EUVD-2026-58670
14 Aug 202614:51
euvd
nvd
NVD
CVE-2026-19879
14 Aug 202615:17
nvd
osv
OSV
DEBIAN-CVE-2026-19879
14 Aug 202615:17
osv
osv
OSV
UBUNTU-CVE-2026-19879
17 Aug 202600:00
osv
ptsecurity
Positive Technologies
PT-2026-72036
14 Aug 202600:00
ptsecurity
redhatcve
RedhatCVE
CVE-2026-19879
14 Aug 202614:51
redhatcve
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-19879
14 Aug 202600:00
nessus
Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Debian14allundertow2.3.20-1undertow_2.3.20-1_all.deb
Debian999allundertow2.3.20-1undertow_2.3.20-1_all.deb

Data

Build on a solid foundation with Vulners data

We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data

Api

Power your application with Vulners API

The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access

App

Assess and manage vulnerabilities with Vulners tools

Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation

14 Aug 2026 14:51Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.15.3
EPSS0.00235
SSVC
4