cve-2025-53506
Vulnerability from cvelistv5
Published
2025-07-10 19:14
Modified
2025-08-08 12:14
Severity ?
EPSS score ?
Summary
Apache Tomcat: DoS via excessive h2 streams at connection start
References
▼ | URL | Tags | |
---|---|---|---|
security@apache.org | https://lists.apache.org/thread/p09775q0rd185m6zz98krg0fp45j8kr0 | Issue Tracking, Mailing List, Vendor Advisory |
Impacted products
▼ | Vendor | Product |
---|---|---|
Apache Software Foundation | Apache Tomcat |
{ "containers": { "adp": [ { "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" } }, { "other": { "content": { "id": "CVE-2025-53506", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "timestamp": "2025-07-11T13:46:01.043076Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2025-07-11T13:49:02.483Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Apache Tomcat", "vendor": "Apache Software Foundation", "versions": [ { "lessThanOrEqual": "11.0.8", "status": "affected", "version": "11.0.0-M1", "versionType": "semver" }, { "lessThanOrEqual": "10.1.42", "status": "affected", "version": "10.1.0-M1", "versionType": "semver" }, { "lessThanOrEqual": "9.0.106", "status": "affected", "version": "9.0.0.M1", "versionType": "semver" }, { "lessThanOrEqual": "8.5.100", "status": "affected", "version": "8.5.0", "versionType": "semver" } ] } ], "credits": [ { "lang": "en", "type": "finder", "value": "Kanatoko" } ], "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "\u003cp\u003eUncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams.\u003c/p\u003e\u003cp\u003eThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106.\u003cbr\u003eThe following versions were EOL at the time the CVE was created but are \nknown to be affected: 8.5.0 through 8.5.100.\u003cbr\u003e\u003c/p\u003e\u003cp\u003eUsers are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.\u003c/p\u003e" } ], "value": "Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106.\nThe following versions were EOL at the time the CVE was created but are \nknown to be affected: 8.5.0 through 8.5.100.\n\n\nUsers are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue." } ], "metrics": [ { "other": { "content": { "text": "important" }, "type": "Textual description of severity" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-400", "description": "CWE-400 Uncontrolled Resource Consumption", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2025-08-08T12:14:53.022Z", "orgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "shortName": "apache" }, "references": [ { "tags": [ "vendor-advisory" ], "url": "https://lists.apache.org/thread/p09775q0rd185m6zz98krg0fp45j8kr0" } ], "source": { "discovery": "EXTERNAL" }, "title": "Apache Tomcat: DoS via excessive h2 streams at connection start", "x_generator": { "engine": "Vulnogram 0.2.0" } } }, "cveMetadata": { "assignerOrgId": "f0158376-9dc2-43b6-827c-5f631a4d8d09", "assignerShortName": "apache", "cveId": "CVE-2025-53506", "datePublished": "2025-07-10T19:14:23.249Z", "dateReserved": "2025-07-01T14:22:04.137Z", "dateUpdated": "2025-08-08T12:14:53.022Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2025-53506\",\"sourceIdentifier\":\"security@apache.org\",\"published\":\"2025-07-10T20:15:26.970\",\"lastModified\":\"2025-08-08T13:15:29.780\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Uncontrolled Resource Consumption vulnerability in Apache Tomcat if an HTTP/2 client did not acknowledge the initial settings frame that reduces the maximum permitted concurrent streams.\\n\\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.8, from 10.1.0-M1 through 10.1.42, from 9.0.0.M1 through 9.0.106.\\nThe following versions were EOL at the time the CVE was created but are \\nknown to be affected: 8.5.0 through 8.5.100.\\n\\n\\nUsers are recommended to upgrade to version 11.0.9, 10.1.43 or 9.0.107, which fix the issue.\"},{\"lang\":\"es\",\"value\":\"Vulnerabilidad de consumo incontrolado de recursos en Apache Tomcat si un cliente HTTP/2 no reconoce el marco de configuraci\u00f3n inicial que reduce el m\u00e1ximo de transmisiones simult\u00e1neas permitidas. Este problema afecta a Apache Tomcat: de 11.0.0-M1 a 11.0.8, de 10.1.0-M1 a 10.1.42, y de 9.0.0.M1 a 9.0.106. Se recomienda actualizar a las versiones 11.0.9, 10.1.43 o 9.0.107, que solucionan el problema.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security@apache.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-400\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"9.0.0\",\"versionEndIncluding\":\"9.0.106\",\"matchCriteriaId\":\"5D1D5DA0-D03A-4A7A-B0F8-78FBC3229322\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"10.1.0\",\"versionEndIncluding\":\"10.1.42\",\"matchCriteriaId\":\"641541D9-6F81-4357-B535-D83D25217A14\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"11.0.0\",\"versionEndIncluding\":\"11.0.8\",\"matchCriteriaId\":\"C16A32B5-DB24-48E2-BABE-6F60360786DF\"}]}]}],\"references\":[{\"url\":\"https://lists.apache.org/thread/p09775q0rd185m6zz98krg0fp45j8kr0\",\"source\":\"security@apache.org\",\"tags\":[\"Issue Tracking\",\"Mailing List\",\"Vendor Advisory\"]}]}}" } }
Loading...
Loading...
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.