Critical
jetty12, jetty9 — security advisory
In Eclipse Jetty, the Digest authentication server-side component uses ISO-8859-1 to encode the password as bytes. This 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. If 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`. An 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. Recent 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.
- Products
- jetty12, jetty9
- Affected versions
- 12.0.17-3.1, 12.0.32-1, 9.2.14-1, 9.2.22-2, 9.2.22-3, 9.2.23-1, 9.4.15-1~18.04.1ubuntu1, 9.4.18-2build2, 9.4.26-1, 9.4.39-3, 9.4.44-2, 9.4.44-3, 9.4.44-4, 9.4.45-1, 9.4.51-2, 9.4.53-1, 9.4.57-1, 9.4.57-1.1, 9.4.58-1, 9.4.58-2
- Fixed versions
- Not specified
- CVEs
- CVE-2026-10050
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 02:35 UTC · Revision 1
Source evidence
In Eclipse Jetty, the Digest authentication server-side component uses ISO-8859-1 to encode the password as bytes. This 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. If 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`. An 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. Recent 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.
osv:UBUNTU-CVE-2026-10050
jetty9
Fixed versions: Not specified
jetty9
Fixed versions: Not specified
jetty9
Fixed versions: Not specified
jetty9
Fixed versions: Not specified
jetty9
Fixed versions: Not specified
jetty12
Fixed versions: Not specified
jetty9
Fixed versions: Not specified
jetty12
Fixed versions: Not specified
jetty9
Fixed versions: Not specified
Complete source record
{
"id": "74b54388fef8cc6a5b976cbbb300e29c6eb46bf61f6e1604f68a2e680b1b838a",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-10050",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-10050",
"summary": "In Eclipse Jetty, the Digest authentication server-side component uses ISO-8859-1 to encode the password as bytes. This 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. If 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`. An 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. Recent 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.",
"evidence": "osv:UBUNTU-CVE-2026-10050",
"products": [
{
"name": {
"value": "jetty9",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.2.14-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "jetty9",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.2.22-2",
"evidence": "/affected/1/versions"
},
{
"value": "9.2.22-3",
"evidence": "/affected/1/versions"
},
{
"value": "9.2.23-1",
"evidence": "/affected/1/versions"
},
{
"value": "9.4.15-1~18.04.1ubuntu1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
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"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.4.18-2build2",
"evidence": "/affected/2/versions"
},
{
"value": "9.4.26-1",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "jetty9",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
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"affected_versions": [
{
"value": "9.4.39-3",
"evidence": "/affected/3/versions"
},
{
"value": "9.4.44-2",
"evidence": "/affected/3/versions"
},
{
"value": "9.4.44-3",
"evidence": "/affected/3/versions"
},
{
"value": "9.4.44-4",
"evidence": "/affected/3/versions"
},
{
"value": "9.4.45-1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "jetty9",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.4.51-2",
"evidence": "/affected/4/versions"
},
{
"value": "9.4.53-1",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "jetty12",
"evidence": "/affected/5/package/name"
},
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"affected_versions": [
{
"value": "12.0.32-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "jetty9",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.4.58-1",
"evidence": "/affected/6/versions"
},
{
"value": "9.4.58-2",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "jetty12",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "12.0.17-3.1",
"evidence": "/affected/7/versions"
},
{
"value": "12.0.32-1",
"evidence": "/affected/7/versions"
}
]
},
{
"name": {
"value": "jetty9",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "9.4.57-1",
"evidence": "/affected/8/versions"
},
{
"value": "9.4.57-1.1",
"evidence": "/affected/8/versions"
},
{
"value": "9.4.58-1",
"evidence": "/affected/8/versions"
}
]
}
],
"severity": "critical",
"structured": {
"id": "UBUNTU-CVE-2026-10050",
"aliases": [
"UBUNTU-CVE-2026-10050"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
},
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "jetty9",
"purl": "pkg:deb/ubuntu/jetty9?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"9.2.14-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10050.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jetty9",
"binary_version": "9.2.14-1"
},
{
"binary_name": "libjetty9-extra-java",
"binary_version": "9.2.14-1"
},
{
"binary_name": "libjetty9-java",
"binary_version": "9.2.14-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
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}
]
}
],
"package": {
"name": "jetty9",
"purl": "pkg:deb/ubuntu/jetty9?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"9.2.22-2",
"9.2.22-3",
"9.2.23-1",
"9.4.15-1~18.04.1ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10050.json"
},
"ecosystem_specific": {
"binaries": [
{
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"binary_version": "9.4.15-1~18.04.1ubuntu1"
},
{
"binary_name": "libjetty9-extra-java",
"binary_version": "9.4.15-1~18.04.1ubuntu1"
},
{
"binary_name": "libjetty9-java",
"binary_version": "9.4.15-1~18.04.1ubuntu1"
}
]
}
},
{
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"purl": "pkg:deb/ubuntu/jetty9?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"9.4.18-2build2",
"9.4.26-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10050.json"
},
"ecosystem_specific": {
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"binary_version": "9.4.26-1"
},
{
"binary_name": "libjetty9-extra-java",
"binary_version": "9.4.26-1"
},
{
"binary_name": "libjetty9-java",
"binary_version": "9.4.26-1"
}
]
}
},
{
"ranges": [
{
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],
"package": {
"name": "jetty9",
"purl": "pkg:deb/ubuntu/jetty9?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"9.4.39-3",
"9.4.44-2",
"9.4.44-3",
"9.4.44-4",
"9.4.45-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10050.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "jetty9",
"binary_version": "9.4.45-1"
},
{
"binary_name": "libjetty9-extra-java",
"binary_version": "9.4.45-1"
},
{
"binary_name": "libjetty9-java",
"binary_version": "9.4.45-1"
}
]
}
},
{
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"package": {
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"ecosystem": "Ubuntu:24.04:LTS"
},
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"9.4.51-2",
"9.4.53-1"
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{
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{
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},
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},
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"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"9.4.57-1",
"9.4.57-1.1",
"9.4.58-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10050.json"
},
"ecosystem_specific": {
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{
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],
"modified": "2026-10-17T12:58:41.095724275Z",
"provider": "osv",
"upstream": [
"CVE-2026-10050"
],
"references": [
"https://ubuntu.com/security/CVE-2026-10050",
"https://www.cve.org/CVERecord?id=CVE-2026-10050",
"https://github.com/jetty/jetty.project/security/advisories/GHSA-2fvj-hgj9-j2gr",
"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/120"
]
},
"related_cves": [
{
"value": "CVE-2026-10050",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/1/score"
},
"source_id": "core-osv",
"document_id": 358959,
"published_at": "2026-08-04T11:22:00+00:00"
}