{"id":"CVE-2026-59173","state":"PUBLISHED","title":"Apache Traffic Server: DoS vulnerability in HTTP/2 via stalled flow-control conditions","description":"Uncontrolled Resource Consumption vulnerability in Apache Traffic Server.\n\nThis issue affects Apache Traffic Server: from 9.0.0 through 9.1.13, from 10.0.0 through 10.1.2.\n\nUsers are recommended to upgrade to version 9.1.14 or 10.1.3, which fixes the issue.","publishedAt":"2026-07-18T12:52:18.923Z","updatedAt":"2026-07-20T13:41:03.319Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Traffic Server"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Traffic Server","defaultStatus":"unaffected","versions":[{"version":"9.0.0","status":"affected","lessThanOrEqual":"9.2.13","versionType":"semver"},{"version":"10.0.0","status":"affected","lessThanOrEqual":"10.1.2","versionType":"semver"}]}],"references":["https://lists.apache.org/thread/lhlbhphmv5dsfgx1fx84mgonzbocpzhd","http://www.openwall.com/lists/oss-security/2026/07/17/5"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T20:12:32.778Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/59xxx/CVE-2026-59173.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-59173","state":"PUBLISHED","datePublished":"2026-07-18T12:52:18.923Z","dateUpdated":"2026-07-20T13:41:03.319Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-07-02T17:22:51.439Z"},"containers":{"cna":{"title":"Apache Traffic Server: DoS vulnerability in HTTP/2 via stalled flow-control conditions","descriptions":[{"lang":"en","value":"Uncontrolled Resource Consumption vulnerability in Apache Traffic Server.\n\nThis issue affects Apache Traffic Server: from 9.0.0 through 9.1.13, from 10.0.0 through 10.1.2.\n\nUsers are recommended to upgrade to version 9.1.14 or 10.1.3, which fixes the issue."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Traffic Server","defaultStatus":"unaffected","versions":[{"version":"9.0.0","status":"affected","lessThanOrEqual":"9.2.13","versionType":"semver"},{"version":"10.0.0","status":"affected","lessThanOrEqual":"10.1.2","versionType":"semver"}]}],"references":[{"url":"https://lists.apache.org/thread/lhlbhphmv5dsfgx1fx84mgonzbocpzhd","tags":["vendor-advisory"]}],"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":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-07-18T12:52:18.923Z"},"credits":[{"lang":"en","type":"reporter","value":"Okta Red Team"}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/07/17/5"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-07-18T13:33:30.084Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-07-20T13:40:59.937141Z","id":"CVE-2026-59173","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-20T13:41:03.319Z"}}]}}}