> CVE-2026-42498

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PUBLISHED
2026-05-12 16:16
MODIFIED
2026-05-12 16:37
EPSS (Prob. Exploit)
0.65%
Top 49.6%
DATA SOURCES:
NVD 🔗 2026-05-12 CWE MITRE 🔗 2026-11-01 FIRST EPSS 🔗 2026-10-25 GITHUB 🔗 2026-11-05 OSV 🔗 2026-09-20

> DESCRIPTION

Exposure of HTTP Authentication Header to unexpected hosts during WebSocket authentication vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.2 through 9.0.117, from 8.5.24 through 8.5.100, from 7.0.83 through 7.0.109. Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118, which fix the issue.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> WEAKNESSES

CWE-200

> CWE DETAILED DESCRIPTIONS

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor - The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat JBoss Web Server 7.0.0 security release
Red Hat JBoss Web Server 7.0 is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, and Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a s...
Red Hat Security Advisory: Red Hat JBoss Web Server 7.0.0 security release
Red Hat JBoss Web Server 7.0.0 zip release is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Linux Enterprise 10, and Windows Server. Red Hat Product Security has r...
Red Hat Security Advisory: Red Hat JBoss Web Server 6.2.4 release and security update
Red Hat JBoss Web Server 6.2.4 is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, and Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a...
Red Hat Security Advisory: Red Hat JBoss Web Server 6.2.4 release and security update
Red Hat JBoss Web Server 6.2.4 zip release is now available for Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat Enterprise Linux 10, and Windows Server. Red Hat Product Security has r...
Red Hat Security Advisory: tomcat9 security update
An update for tomcat9 is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vul...
Red Hat Security Advisory: tomcat security update
An update for tomcat is now available for Red Hat Enterprise Linux 10.0 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vuln...
Red Hat Security Advisory: tomcat security update
An update for tomcat is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (C...
Red Hat Security Advisory: tomcat security, bug fix, and enhancement update
An update for tomcat is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CV...
Red Hat Security Advisory: tomcat security update
An update for tomcat is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Co...
Red Hat Security Advisory: tomcat security update
An update for tomcat is now available for Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Co...
Red Hat Security Advisory: tomcat security update
An update for tomcat is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security h...
Red Hat Security Advisory: tomcat security update
An update for tomcat is now available for Red Hat Enterprise Linux 9.6 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulne...
Red Hat Security Advisory: tomcat9 security update
An update for tomcat9 is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (...
Red Hat Security Advisory: tomcat update
An update for tomcat is now available for Red Hat Enterprise Linux 10.3. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System...

> GITHUB SECURITY ADVISORY

GHSA-fv25-8xcx-gqjc HIGH

Apache Tomcat - WebSocket authentication header exposure

AFFECTED PACKAGES:
MAVEN / org.apache.tomcat:tomcat-catalina
>= 11.0.0-M1, < 11.0.22
Fixed in: 11.0.22
MAVEN / org.apache.tomcat:tomcat-catalina
>= 10.1.0-M1, < 10.1.55
Fixed in: 10.1.55
MAVEN / org.apache.tomcat:tomcat-catalina
< 9.0.118
Fixed in: 9.0.118
MAVEN / org.apache.tomcat:tomcat
>= 11.0.0-M1, < 11.0.22
Fixed in: 11.0.22
MAVEN / org.apache.tomcat:tomcat
>= 10.1.0-M1, < 10.1.55
Fixed in: 10.1.55
MAVEN / org.apache.tomcat:tomcat
< 9.0.118
Fixed in: 9.0.118
MAVEN / org.apache.tomcat.embed:tomcat-embed-core
>= 11.0.0-M1, < 11.0.22
Fixed in: 11.0.22
MAVEN / org.apache.tomcat.embed:tomcat-embed-core
>= 10.1.0-M1, < 10.1.55
Fixed in: 10.1.55
MAVEN / org.apache.tomcat.embed:tomcat-embed-core
< 9.0.118
Fixed in: 9.0.118

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Apache Tomcat: WebSocket authentication header exposure

AFFECTED PACKAGES:
Unknown / Unknown
ALIASES:
BIT-tomcat-2026-42498, GHSA-fv25-8xcx-gqjc

> HISTORIQUE DES MODIFICATIONS

Première apparition
12/05/2026 16:16
Source: NVD
📊 ENRICHISSEMENT 01/06/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-200: Exposure of Sensitive Information to an Unauthorized Actor - The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
Total des modifications: 1 Dernière mise à jour: 5 months ago

> REFERENCES

https://lists.apache.org/thread/n61zwf75jrv09rz90j4jssncm244bwdb
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