UnratedFix available
tomcat: Fix of 4 CVEs
Type: advisorySources: OSV
- CVE-2026-43514: fix observable timing discrepancy when comparing AJP secret (Low) - CVE-2026-43512: fix authentication bypass in DIGEST authentication when password is null (Moderate) - CVE-2026-43515: fix improper authorization when multiple method constraints apply to the same extension pattern (Moderate) - CVE-2026-43513: fix LockOutRealm bypass via case-variant usernames against case-insensitive realms (Low)
- Products
- tomcat, tomcat-admin-webapps, tomcat-docs-webapp, tomcat-el-2.2-api, tomcat-javadoc, tomcat-jsp-2.2-api, tomcat-jsvc, tomcat-lib, tomcat-servlet-3.0-api, tomcat-webapps
- Affected versions
- Not specified
- Fixed versions
- 7.0.76-16.el7_9.tuxcare.els4
- CVEs
- CVE-2026-43512, CVE-2026-43513, CVE-2026-43514, CVE-2026-43515
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:56 UTC · Revision 1
Source evidence
- CVE-2026-43514: fix observable timing discrepancy when comparing AJP secret (Low) - CVE-2026-43512: fix authentication bypass in DIGEST authentication when password is null (Moderate) - CVE-2026-43515: fix improper authorization when multiple method constraints apply to the same extension pattern (Moderate) - CVE-2026-43513: fix LockOutRealm bypass via case-variant usernames against case-insensitive realms (Low)
osv:CLSA-2026-1779366607
tomcat
Fixed versions: 7.0.76-16.el7_9.tuxcare.els4
tomcat-admin-webapps
Fixed versions: 7.0.76-16.el7_9.tuxcare.els4
tomcat-docs-webapp
Fixed versions: 7.0.76-16.el7_9.tuxcare.els4
tomcat-el-2.2-api
Fixed versions: 7.0.76-16.el7_9.tuxcare.els4
tomcat-javadoc
Fixed versions: 7.0.76-16.el7_9.tuxcare.els4
tomcat-jsp-2.2-api
Fixed versions: 7.0.76-16.el7_9.tuxcare.els4
tomcat-jsvc
Fixed versions: 7.0.76-16.el7_9.tuxcare.els4
tomcat-lib
Fixed versions: 7.0.76-16.el7_9.tuxcare.els4
tomcat-servlet-3.0-api
Fixed versions: 7.0.76-16.el7_9.tuxcare.els4
tomcat-webapps
Fixed versions: 7.0.76-16.el7_9.tuxcare.els4
Complete source record
{
"id": "6a721f175e755a72406113460f08a92fdee81b9e03340b6897d0ea5c3d98d5aa",
"url": "https://osv.dev/vulnerability/CLSA-2026-1779366607",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "tomcat: Fix of 4 CVEs",
"summary": "- CVE-2026-43514: fix observable timing discrepancy when comparing AJP secret (Low) - CVE-2026-43512: fix authentication bypass in DIGEST authentication when password is null (Moderate) - CVE-2026-43515: fix improper authorization when multiple method constraints apply to the same extension pattern (Moderate) - CVE-2026-43513: fix LockOutRealm bypass via case-variant usernames against case-insensitive realms (Low)",
"evidence": "osv:CLSA-2026-1779366607",
"products": [
{
"name": {
"value": "tomcat",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.0.76-16.el7_9.tuxcare.els4",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-admin-webapps",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.0.76-16.el7_9.tuxcare.els4",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-docs-webapp",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.0.76-16.el7_9.tuxcare.els4",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-el-2.2-api",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.0.76-16.el7_9.tuxcare.els4",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-javadoc",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.0.76-16.el7_9.tuxcare.els4",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-jsp-2.2-api",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.0.76-16.el7_9.tuxcare.els4",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-jsvc",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.0.76-16.el7_9.tuxcare.els4",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-lib",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.0.76-16.el7_9.tuxcare.els4",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-servlet-3.0-api",
"evidence": "/affected/8/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.0.76-16.el7_9.tuxcare.els4",
"evidence": "/affected/8/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-webapps",
"evidence": "/affected/9/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "7.0.76-16.el7_9.tuxcare.els4",
"evidence": "/affected/9/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1779366607",
"aliases": [
"CLSA-2026-1779366607"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.76-16.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "tomcat",
"purl": "pkg:rpm/tuxcare/tomcat?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779366607.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.76-16.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "tomcat-admin-webapps",
"purl": "pkg:rpm/tuxcare/tomcat-admin-webapps?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779366607.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.76-16.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "tomcat-docs-webapp",
"purl": "pkg:rpm/tuxcare/tomcat-docs-webapp?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779366607.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.76-16.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "tomcat-el-2.2-api",
"purl": "pkg:rpm/tuxcare/tomcat-el-2.2-api?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779366607.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.76-16.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "tomcat-javadoc",
"purl": "pkg:rpm/tuxcare/tomcat-javadoc?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779366607.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.76-16.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "tomcat-jsp-2.2-api",
"purl": "pkg:rpm/tuxcare/tomcat-jsp-2.2-api?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779366607.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.76-16.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "tomcat-jsvc",
"purl": "pkg:rpm/tuxcare/tomcat-jsvc?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779366607.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.76-16.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "tomcat-lib",
"purl": "pkg:rpm/tuxcare/tomcat-lib?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779366607.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.76-16.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "tomcat-servlet-3.0-api",
"purl": "pkg:rpm/tuxcare/tomcat-servlet-3.0-api?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779366607.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "7.0.76-16.el7_9.tuxcare.els4"
}
]
}
],
"package": {
"name": "tomcat-webapps",
"purl": "pkg:rpm/tuxcare/tomcat-webapps?distro=centos-7",
"ecosystem": "TuxCare:CentOS:7"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/centos7els/CLSA-2026-1779366607.json"
}
}
],
"modified": "2026-10-26T09:43:50.886657883Z",
"provider": "osv",
"upstream": [
"CVE-2026-43512",
"CVE-2026-43513",
"CVE-2026-43514",
"CVE-2026-43515"
],
"references": [
"https://errata.tuxcare.com/els_os/centos7els/CLSA-2026-1779366607.html"
]
},
"related_cves": [
{
"value": "CVE-2026-43512",
"evidence": "/upstream"
},
{
"value": "CVE-2026-43513",
"evidence": "/upstream"
},
{
"value": "CVE-2026-43514",
"evidence": "/upstream"
},
{
"value": "CVE-2026-43515",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 450187,
"published_at": "2026-05-21T15:42:09+00:00"
}