CVE-2026-19203

highpriority · track · 0EPSS 0.005 · 43 %ileDEFR

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.51% (43rd) EPSS

CVSS 8.3 · high

Is it mine?

13 products

Check your exposure

Who says so?

2 sources

cert_bund · certfr

EPSS · scored 2026-10-27

A client may issue specially crafted HTTP/1.1 chunked requests to a Jetty server that cause Jetty and an intermediary proxy to interpret different request boundaries, potentially resulting in HTTP request smuggling. This is caused by Jetty accepting a lone LF character as a terminator in parts of chunked request parsing. Depending on the Jetty version and configured HTTP compliance mode, this may occur in chunk extensions, chunk data termination, or trailer termination.

cvss

Technical severity, 0–10. One row per scoring source.

8.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.8–8.3

v4.08.3highCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · emo@eclipse.org

v4.04.8mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-444US

affected products (13)

Products and version ranges known to be affected.

IBM App Connect Enterpriseall versionscert_bundDEcpe:/a:ibm:app_connect_enterprise:-
IBM SPSSall versionscert_bundDEcpe:/a:ibm:spss:modeler
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
Eclipse Eclipse Jetty <10.0.32< 10.0.32cert_bundDE
Eclipse Eclipse Jetty <11.0.32< 11.0.32cert_bundDE
Eclipse Eclipse Jetty <12.0.38< 12.0.38cert_bundDE
Eclipse Eclipse Jetty <12.1.12< 12.1.12cert_bundDE
Eclipse Eclipse Jetty <9.4.64< 9.4.64cert_bundDE
Eclipse Jetty< 10.0.32cert_bundDE
Eclipse Jetty< 11.0.32cert_bundDE
Eclipse Jetty< 12.0.38cert_bundDE
Eclipse Jetty< 12.1.12cert_bundDE
Eclipse Jetty< 9.4.64cert_bundDE

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2026-3434Eclipse Jetty: Schwachstelle ermöglicht Darstellen falscher Informationen und OffenlegungDeutsch2026-09-16csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Eclipse Jetty ausnutzen, um falsche Informationen darzustellen und Informationen offenzulegen.
CERTFR-2026-AVI-1336Multiples vulnérabilités dans les produits IBMFrançais2026-10-16vendor · certfrFR
CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR

sources

Which sources assert this record, and when.

cert_bund certfr NVD CVE.org MITRE

published 2026-09-08modified 2026-09-08

references (1) nvd

External citations — patches, advisories, analysis.

https://github.com/jetty/jetty.project/security/advisories/GHSA-xc35-c22g-239h

scry

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