UnratedFix available
Fix CVE(s): CVE-2025-31651
Type: advisorySources: OSV
* SECURITY UPDATE: rewrite rule bypass with encoded characters - debian/patches/CVE-2025-31651.patch: encode literal '%', ';' and '?' in the URL before the rewrite rules are evaluated and treat '%' as safe when re-encoding afterwards in java/org/apache/catalina/valves/rewrite/RewriteValve.java, stop truncating the decoded URI at the first ';' when a rewritten request is re-dispatched in java/org/apache/catalina/connector/CoyoteAdapter.java, add tests to test/org/apache/catalina/valves/rewrite/TestRewriteValve.java - CVE-2025-31651
- Products
- libservlet3.1-java, libservlet3.1-java-doc, libtomcat8-java, tomcat8, tomcat8-admin, tomcat8-common, tomcat8-docs, tomcat8-examples, tomcat8-user
- Affected versions
- Not specified
- Fixed versions
- 8.0.32-1ubuntu1.13+tuxcare.els4
- CVEs
- CVE-2025-31651
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 1 Nov 2026, 11:39 UTC · Revision 1
Source evidence
* SECURITY UPDATE: rewrite rule bypass with encoded characters - debian/patches/CVE-2025-31651.patch: encode literal '%', ';' and '?' in the URL before the rewrite rules are evaluated and treat '%' as safe when re-encoding afterwards in java/org/apache/catalina/valves/rewrite/RewriteValve.java, stop truncating the decoded URI at the first ';' when a rewritten request is re-dispatched in java/org/apache/catalina/connector/CoyoteAdapter.java, add tests to test/org/apache/catalina/valves/rewrite/TestRewriteValve.java - CVE-2025-31651
osv:CLSA-2026-1786542969
libservlet3.1-java
Fixed versions: 8.0.32-1ubuntu1.13+tuxcare.els4
libservlet3.1-java-doc
Fixed versions: 8.0.32-1ubuntu1.13+tuxcare.els4
libtomcat8-java
Fixed versions: 8.0.32-1ubuntu1.13+tuxcare.els4
tomcat8
Fixed versions: 8.0.32-1ubuntu1.13+tuxcare.els4
tomcat8-admin
Fixed versions: 8.0.32-1ubuntu1.13+tuxcare.els4
tomcat8-common
Fixed versions: 8.0.32-1ubuntu1.13+tuxcare.els4
tomcat8-docs
Fixed versions: 8.0.32-1ubuntu1.13+tuxcare.els4
tomcat8-examples
Fixed versions: 8.0.32-1ubuntu1.13+tuxcare.els4
tomcat8-user
Fixed versions: 8.0.32-1ubuntu1.13+tuxcare.els4
Complete source record
{
"id": "f4669885b59afa60cfb90dc83644232f27f0020374b7f58a9eb39d3042fc5062",
"url": "https://osv.dev/vulnerability/CLSA-2026-1786542969",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Fix CVE(s): CVE-2025-31651",
"summary": "* SECURITY UPDATE: rewrite rule bypass with encoded characters - debian/patches/CVE-2025-31651.patch: encode literal '%', ';' and '?' in the URL before the rewrite rules are evaluated and treat '%' as safe when re-encoding afterwards in java/org/apache/catalina/valves/rewrite/RewriteValve.java, stop truncating the decoded URI at the first ';' when a rewritten request is re-dispatched in java/org/apache/catalina/connector/CoyoteAdapter.java, add tests to test/org/apache/catalina/valves/rewrite/TestRewriteValve.java - CVE-2025-31651",
"evidence": "osv:CLSA-2026-1786542969",
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{
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{
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"affected_versions": []
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{
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"affected_versions": []
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],
"severity": "unknown",
"structured": {
"id": "CLSA-2026-1786542969",
"aliases": [
"CLSA-2026-1786542969"
],
"affected": [
{
"ranges": [
{
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"events": [
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{
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}
],
"package": {
"name": "libservlet3.1-java",
"purl": "pkg:deb/tuxcare/libservlet3.1-java?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1786542969.json"
}
},
{
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"package": {
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"purl": "pkg:deb/tuxcare/libservlet3.1-java-doc?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1786542969.json"
}
},
{
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],
"package": {
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"purl": "pkg:deb/tuxcare/libtomcat8-java?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
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}
},
{
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"package": {
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"purl": "pkg:deb/tuxcare/tomcat8?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
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},
{
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],
"package": {
"name": "tomcat8-admin",
"purl": "pkg:deb/tuxcare/tomcat8-admin?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
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},
{
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"purl": "pkg:deb/tuxcare/tomcat8-common?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
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}
},
{
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],
"package": {
"name": "tomcat8-docs",
"purl": "pkg:deb/tuxcare/tomcat8-docs?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1786542969.json"
}
},
{
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],
"package": {
"name": "tomcat8-examples",
"purl": "pkg:deb/tuxcare/tomcat8-examples?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1786542969.json"
}
},
{
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],
"package": {
"name": "tomcat8-user",
"purl": "pkg:deb/tuxcare/tomcat8-user?distro=ubuntu-16.04",
"ecosystem": "TuxCare:Ubuntu:16.04"
},
"database_specific": {
"source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_os/ubuntu16.04els/CLSA-2026-1786542969.json"
}
}
],
"modified": "2026-10-26T09:32:02.123809966Z",
"provider": "osv",
"upstream": [
"CVE-2025-31651"
],
"references": [
"https://errata.tuxcare.com/els_os/ubuntu16.04els/CLSA-2026-1786542969.html",
"https://nvd.nist.gov/vuln/detail/CVE-2025-31651"
]
},
"related_cves": [
{
"value": "CVE-2025-31651",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 449419,
"published_at": "2026-08-12T13:56:20+00:00"
}