Improper Handling of Alternate Encoding in Jetty - CVE-2026-10050
Published: July 13, 2026
Vulnerability identifier: #VU137397
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2026-10050
CWE-ID: CWE-173
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Eclipse
Affected software:
Jetty
Jetty
Detailed vulnerability description
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.
How to mitigate CVE-2026-10050
Install security update from vendor's website.