UnratedFix available
tomcat: Fix of 2 CVEs
Type: advisorySources: OSV
- CVE-2025-55668: fix session fixation in RewriteValve by encoding session id into sendRedirect URL and recycling session info on rewrite reinvoke - CVE-2026-29146: fix padding oracle in EncryptInterceptor by changing default cipher to AES/GCM/NoPadding and rejecting insecure mode+padding combinations
- Products
- tomcat, tomcat-admin-webapps, tomcat-docs-webapp, tomcat-el-3.0-api, tomcat-jsp-2.3-api, tomcat-lib, tomcat-servlet-4.0-api, tomcat-webapps
- Affected versions
- Not specified
- Fixed versions
- 1:9.0.62-12.el9_2.1.tuxcare.els3
- CVEs
- CVE-2025-55668, CVE-2026-29146
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 10:40 UTC · Revision 1
Source evidence
- CVE-2025-55668: fix session fixation in RewriteValve by encoding session id into sendRedirect URL and recycling session info on rewrite reinvoke - CVE-2026-29146: fix padding oracle in EncryptInterceptor by changing default cipher to AES/GCM/NoPadding and rejecting insecure mode+padding combinations
osv:CLSA-2026-1780997466
tomcat
Fixed versions: 1:9.0.62-12.el9_2.1.tuxcare.els3
tomcat-admin-webapps
Fixed versions: 1:9.0.62-12.el9_2.1.tuxcare.els3
tomcat-docs-webapp
Fixed versions: 1:9.0.62-12.el9_2.1.tuxcare.els3
tomcat-el-3.0-api
Fixed versions: 1:9.0.62-12.el9_2.1.tuxcare.els3
tomcat-jsp-2.3-api
Fixed versions: 1:9.0.62-12.el9_2.1.tuxcare.els3
tomcat-lib
Fixed versions: 1:9.0.62-12.el9_2.1.tuxcare.els3
tomcat-servlet-4.0-api
Fixed versions: 1:9.0.62-12.el9_2.1.tuxcare.els3
tomcat-webapps
Fixed versions: 1:9.0.62-12.el9_2.1.tuxcare.els3
Complete source record
{
"id": "d143b910f688cdf931cf07937f73891b13919577269ada927f10bd2ab8680270",
"url": "https://osv.dev/vulnerability/CLSA-2026-1780997466",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "tomcat: Fix of 2 CVEs",
"summary": "- CVE-2025-55668: fix session fixation in RewriteValve by encoding session id into sendRedirect URL and recycling session info on rewrite reinvoke - CVE-2026-29146: fix padding oracle in EncryptInterceptor by changing default cipher to AES/GCM/NoPadding and rejecting insecure mode+padding combinations",
"evidence": "osv:CLSA-2026-1780997466",
"products": [
{
"name": {
"value": "tomcat",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.0.62-12.el9_2.1.tuxcare.els3",
"evidence": "/affected/0/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-admin-webapps",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.0.62-12.el9_2.1.tuxcare.els3",
"evidence": "/affected/1/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-docs-webapp",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.0.62-12.el9_2.1.tuxcare.els3",
"evidence": "/affected/2/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-el-3.0-api",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.0.62-12.el9_2.1.tuxcare.els3",
"evidence": "/affected/3/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-jsp-2.3-api",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.0.62-12.el9_2.1.tuxcare.els3",
"evidence": "/affected/4/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-lib",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.0.62-12.el9_2.1.tuxcare.els3",
"evidence": "/affected/5/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-servlet-4.0-api",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.0.62-12.el9_2.1.tuxcare.els3",
"evidence": "/affected/6/ranges"
}
],
"affected_versions": []
},
{
"name": {
"value": "tomcat-webapps",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [
{
"value": "1:9.0.62-12.el9_2.1.tuxcare.els3",
"evidence": "/affected/7/ranges"
}
],
"affected_versions": []
}
],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1780997466",
"aliases": [
"CLSA-2026-1780997466"
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.0.62-12.el9_2.1.tuxcare.els3"
}
]
}
],
"package": {
"name": "tomcat",
"purl": "pkg:rpm/tuxcare/tomcat?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1780997466.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.0.62-12.el9_2.1.tuxcare.els3"
}
]
}
],
"package": {
"name": "tomcat-admin-webapps",
"purl": "pkg:rpm/tuxcare/tomcat-admin-webapps?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1780997466.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.0.62-12.el9_2.1.tuxcare.els3"
}
]
}
],
"package": {
"name": "tomcat-docs-webapp",
"purl": "pkg:rpm/tuxcare/tomcat-docs-webapp?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1780997466.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.0.62-12.el9_2.1.tuxcare.els3"
}
]
}
],
"package": {
"name": "tomcat-el-3.0-api",
"purl": "pkg:rpm/tuxcare/tomcat-el-3.0-api?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1780997466.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.0.62-12.el9_2.1.tuxcare.els3"
}
]
}
],
"package": {
"name": "tomcat-jsp-2.3-api",
"purl": "pkg:rpm/tuxcare/tomcat-jsp-2.3-api?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1780997466.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.0.62-12.el9_2.1.tuxcare.els3"
}
]
}
],
"package": {
"name": "tomcat-lib",
"purl": "pkg:rpm/tuxcare/tomcat-lib?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1780997466.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.0.62-12.el9_2.1.tuxcare.els3"
}
]
}
],
"package": {
"name": "tomcat-servlet-4.0-api",
"purl": "pkg:rpm/tuxcare/tomcat-servlet-4.0-api?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1780997466.json"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:9.0.62-12.el9_2.1.tuxcare.els3"
}
]
}
],
"package": {
"name": "tomcat-webapps",
"purl": "pkg:rpm/tuxcare/tomcat-webapps?distro=almalinux-9.2",
"ecosystem": "TuxCare:AlmaLinux:9.2"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/almalinux9.2esu/CLSA-2026-1780997466.json"
}
}
],
"modified": "2026-10-26T09:30:19.681734641Z",
"provider": "osv",
"upstream": [
"CVE-2025-55668",
"CVE-2026-29146"
],
"references": [
"https://errata.tuxcare.com/els_os/almalinux9.2esu/CLSA-2026-1780997466.html",
"https://nvd.nist.gov/vuln/detail/CVE-2025-55668",
"https://nvd.nist.gov/vuln/detail/CVE-2026-29146"
]
},
"related_cves": [
{
"value": "CVE-2025-55668",
"evidence": "/upstream"
},
{
"value": "CVE-2026-29146",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 446971,
"published_at": "2026-06-09T09:31:31+00:00"
}