CVE-2026-43515 (GCVE-0-2026-43515)
Vulnerability from cvelistv5 – Published: 2026-05-12 15:33 – Updated: 2026-05-12 17:41
VLAI?
Title
Apache Tomcat: Security constraints not correctly applied
Summary
Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.
Users are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.
Severity ?
No CVSS data available.
CWE
- CWE-285 - Improper Authorization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://lists.apache.org/thread/746nxfxod0wsocxtm… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Affected:
11.0.0-M1 , ≤ 11.0.21
(semver)
Affected: 10.1.0-M1 , ≤ 10.1.54 (semver) Affected: 9.0.0.M1 , ≤ 9.0.117 (semver) Affected: 8.5.0 , ≤ 8.5.100 (semver) Affected: 7.0.0 , ≤ 7.0.109 (semver) Unknown: 0 , < 7.00 (semver) |
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2026-05-12T17:41:02.585Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"url": "http://www.openwall.com/lists/oss-security/2026/05/12/11"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Apache Tomcat",
"vendor": "Apache Software Foundation",
"versions": [
{
"lessThanOrEqual": "11.0.21",
"status": "affected",
"version": "11.0.0-M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.1.54",
"status": "affected",
"version": "10.1.0-M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "9.0.117",
"status": "affected",
"version": "9.0.0.M1",
"versionType": "semver"
},
{
"lessThanOrEqual": "8.5.100",
"status": "affected",
"version": "8.5.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.0.109",
"status": "affected",
"version": "7.0.0",
"versionType": "semver"
},
{
"lessThan": "7.00",
"status": "unknown",
"version": "0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "\u003cp\u003eImproper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat.\u003c/p\u003e\u003cp\u003eThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.\u003c/p\u003e\u003cp\u003eUsers are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.\u003c/p\u003e"
}
],
"value": "Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.\n\nUsers are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue."
}
],
"metrics": [
{
"other": {
"content": {
"text": "moderate"
},
"type": "Textual description of severity"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-285",
"description": "CWE-285 Improper Authorization",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-12T15:33:23.311Z",
"orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"shortName": "apache"
},
"references": [
{
"tags": [
"vendor-advisory"
],
"url": "https://lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb"
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Apache Tomcat: Security constraints not correctly applied",
"x_generator": {
"engine": "Vulnogram 0.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09",
"assignerShortName": "apache",
"cveId": "CVE-2026-43515",
"datePublished": "2026-05-12T15:33:23.311Z",
"dateReserved": "2026-05-01T16:24:01.021Z",
"dateUpdated": "2026-05-12T17:41:02.585Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-43515",
"date": "2026-05-13",
"epss": "0.00017",
"percentile": "0.04341"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-43515\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2026-05-12T16:16:18.553\",\"lastModified\":\"2026-05-12T18:17:27.207\",\"vulnStatus\":\"Undergoing Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Improper Authorization vulnerability when multiple method constraints define an HTTP method for the same extension in Apache Tomcat.\\n\\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109.\\n\\nUsers are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.\"}],\"metrics\":{},\"weaknesses\":[{\"source\":\"security@apache.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-285\"}]}],\"references\":[{\"url\":\"https://lists.apache.org/thread/746nxfxod0wsocxtmv8pb8nkgmwpc6bb\",\"source\":\"security@apache.org\"},{\"url\":\"http://www.openwall.com/lists/oss-security/2026/05/12/11\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}"
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…