{"id":"CVE-2026-10050","published":"2026-08-04T11:22:43.883","lastModified":"2026-08-08T00:38:56.660","description":"In Eclipse Jetty, the Digest authentication server-side component uses ISO-8859-1 to encode the password as bytes.\n\n\n\nThis was done because the initial specification for HTTP did not specify explicitly a charset, and it was assumed to be ISO-8859-1 for historical reasons.\n\n\n\nIf the password contains characters that cannot be represented in ISO-8859-1, they are silently replaced by `?`. This happens with passwords that contain Chinese, Cyrillic or Greek characters, for example: `αβ123` converts to `??123`.\n\n\n\nAn attacker can send a request with a digest `Authorization` header crafted with a password made of only `?` characters; the server would match any password of the same length that contains non-ISO-8859-1 characters.\n\n\n\nRecent HTTP Digest [RFC-7616](https://datatracker.ietf.org/doc/html/rfc7616) supports a `charset` parameters that defaults to UTF-8 that allows for correct encoding/decoding of passwords.","cvssScore":9.1,"cvssSeverity":"CRITICAL","cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","cwes":["CWE-173","CWE-303"],"vendors":["eclipse"],"products":["jetty"],"references":[{"url":"https://github.com/jetty/jetty.project/security/advisories/GHSA-2fvj-hgj9-j2gr","tags":["Vendor Advisory","Exploit"]},{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/120","tags":["Issue Tracking"]},{"url":"https://github.com/jetty/jetty.project/security/advisories/GHSA-2fvj-hgj9-j2gr","tags":["Vendor Advisory","Exploit"]}],"exploitRefs":[{"url":"https://github.com/jetty/jetty.project/security/advisories/GHSA-2fvj-hgj9-j2gr","tags":["Vendor Advisory","Exploit"]},{"url":"https://github.com/jetty/jetty.project/security/advisories/GHSA-2fvj-hgj9-j2gr","tags":["Vendor Advisory","Exploit"]}],"hasPoc":true,"ai":{"summary":"The flaw allows an attacker to bypass authentication by crafting a password with non-ISO-8859-1 characters, which are silently replaced by '?'.","exploitability":"Exploitation is relatively easy if the attacker knows the password length and can craft a request with a password made of '?' characters.","blast_radius":"If exploited, this could lead to unauthorized access to protected resources, especially in systems where sensitive data or administrative functions are accessible via digest authentication.","remediation":"Upgrade to Jetty 11.0.0 or later, as the fix is included in this version.","detection":"No reliable host or network indicator is derivable from the published description.","tags":["auth-bypass","web","digest-auth","iso-8859-1"],"model":"qwen2.5:7b-instruct","analyzedAt":"2026-09-29T09:11:53.995Z"}}