Improper Handling of Alternate Encoding in Jetty - CVE-2026-10050

Vulnerability identifier: #VU137397

CSH Severity: High

CVSS v4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-10050

CWE-ID: CWE-173

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass authentication.

The vulnerability exists due to improper handling of alternate encoding in DigestAuthentication.apply() when computing Digest authentication response hashes using ISO-8859-1 encoding. A remote attacker can use a password variant in which non-Latin-1 characters are replaced with '?' characters to bypass authentication.

Successful exploitation requires knowledge of the target username and a password containing characters outside the U+00FF range.

Jetty
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
SUSE Package Hub 15
Development Tools Module
Crucible Data Center
Crucible Server
jetty-util
jetty-server
jetty-util-ajax
jetty-security
jetty-servlet
jetty-http
jetty-io
jetty-continuation

Install security update from vendor's website.

Jetty - addressed in versions 9.4.63, 10.0.31, 11.0.31, 12.0.36, 12.1.10
Crucible Data Center - update to 4.9.13
Crucible Server - update to 4.9.13
jetty-util - update to 9.4.58-150200.3.43.1
jetty-server - update to 9.4.58-150200.3.43.1
jetty-util-ajax - update to 9.4.58-150200.3.43.1
jetty-security - update to 9.4.58-150200.3.43.1
jetty-servlet - update to 9.4.58-150200.3.43.1
jetty-http - update to 9.4.58-150200.3.43.1
jetty-io - update to 9.4.58-150200.3.43.1
jetty-continuation - update to 9.4.58-150200.3.43.1

• https://github.com/jetty/jetty.project/security/advisories/GHSA-2fvj-hgj9-j2gr

• Multiple vulnerabilities in Jetty
• SUSE update for jetty-minimal
• Multiple vulnerabilities in Crucible Data Center and Crucible Server