libapache-mod-jk — security advisory
Important: Authentication Bypass CVE-2023-41081 The mod_jk component of Apache Tomcat Connectors in some circumstances, such as when a configuration included "JkOptions +ForwardDirectories" but the configuration did not provide explicit mounts for all possible proxied requests, mod_jk would use an implicit mapping and map the request to the first defined worker. Such an implicit mapping could result in the unintended exposure of the status worker and/or bypass security constraints configured in httpd. As of JK 1.2.49, the implicit mapping functionality has been removed and all mappings must now be via explicit configuration. Only mod_jk is affected by this issue. The ISAPI redirector is not affected. This issue affects Apache Tomcat Connectors (mod_jk only): from 1.2.0 through 1.2.48. Users are recommended to upgrade to version 1.2.49, which fixes the issue. History 2023-09-13 Original advisory 2023-09-28 Updated summary
- Products
- libapache-mod-jk
- Affected versions
- 1:1.2.48-2
- Fixed versions
- 1:1.2.48-2+deb12u1, 1:1.2.49-1
- CVEs
- CVE-2023-41081
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 15:58 UTC · Revision 1
Source evidence
Important: Authentication Bypass CVE-2023-41081 The mod_jk component of Apache Tomcat Connectors in some circumstances, such as when a configuration included "JkOptions +ForwardDirectories" but the configuration did not provide explicit mounts for all possible proxied requests, mod_jk would use an implicit mapping and map the request to the first defined worker. Such an implicit mapping could result in the unintended exposure of the status worker and/or bypass security constraints configured in httpd. As of JK 1.2.49, the implicit mapping functionality has been removed and all mappings must now be via explicit configuration. Only mod_jk is affected by this issue. The ISAPI redirector is not affected. This issue affects Apache Tomcat Connectors (mod_jk only): from 1.2.0 through 1.2.48. Users are recommended to upgrade to version 1.2.49, which fixes the issue. History 2023-09-13 Original advisory 2023-09-28 Updated summary
osv:DEBIAN-CVE-2023-41081
libapache-mod-jk
Fixed versions: 1:1.2.48-2+deb12u1
libapache-mod-jk
Fixed versions: 1:1.2.49-1
libapache-mod-jk
Fixed versions: 1:1.2.49-1
Complete source record
{
"id": "4be3384700d337a26cc7e32e4a73969d21ae8a241c5f85ff26e3dcae62c6763b",
"url": "https://osv.dev/vulnerability/DEBIAN-CVE-2023-41081",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "DEBIAN-CVE-2023-41081",
"summary": "Important: Authentication Bypass CVE-2023-41081 The mod_jk component of Apache Tomcat Connectors in some circumstances, such as when a configuration included \"JkOptions +ForwardDirectories\" but the configuration did not provide explicit mounts for all possible proxied requests, mod_jk would use an implicit mapping and map the request to the first defined worker. Such an implicit mapping could result in the unintended exposure of the status worker and/or bypass security constraints configured in httpd. As of JK 1.2.49, the implicit mapping functionality has been removed and all mappings must now be via explicit configuration. Only mod_jk is affected by this issue. The ISAPI redirector is not affected. This issue affects Apache Tomcat Connectors (mod_jk only): from 1.2.0 through 1.2.48. Users are recommended to upgrade to version 1.2.49, which fixes the issue. History 2023-09-13 Original advisory 2023-09-28 Updated summary",
"evidence": "osv:DEBIAN-CVE-2023-41081",
"products": [
{
"name": {
"value": "libapache-mod-jk",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:1.2.48-2+deb12u1",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": [
{
"value": "1:1.2.48-2",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "libapache-mod-jk",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:1.2.49-1",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "libapache-mod-jk",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:1.2.49-1",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
}
],
"severity": "high",
"structured": {
"id": "DEBIAN-CVE-2023-41081",
"aliases": [
"DEBIAN-CVE-2023-41081"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:1.2.48-2+deb12u1"
}
]
}
],
"package": {
"name": "libapache-mod-jk",
"purl": "pkg:deb/debian/libapache-mod-jk?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1:1.2.48-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-41081.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:1.2.49-1"
}
]
}
],
"package": {
"name": "libapache-mod-jk",
"purl": "pkg:deb/debian/libapache-mod-jk?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-41081.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:1.2.49-1"
}
]
}
],
"package": {
"name": "libapache-mod-jk",
"purl": "pkg:deb/debian/libapache-mod-jk?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2023-41081.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
],
"modified": "2026-10-26T18:02:33.175457972Z",
"provider": "osv",
"upstream": [
"CVE-2023-41081"
],
"references": [
"https://security-tracker.debian.org/tracker/CVE-2023-41081"
]
},
"related_cves": [
{
"value": "CVE-2023-41081",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 456241,
"published_at": "2023-09-13T10:15:07.657+00:00"
}