{"schema":"threatline.record/2","record":{"id":"CVE-2026-111808","aliases":[],"summary":"Apache Traffic Server: HTTP/2 DATA frame padding underflow lets a client trigger backend worker-pool exhaustion","details":"Apache Traffic Server can be used to exhaust an HTTP/1.1 origin's worker pool via a malformed padded HTTP/2 DATA frame.\n\n\n\nThis issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0.\n\n\n\nUsers are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.","categories":["Unclassified"],"product":"Apache Traffic Server","vendor":"Apache Software Foundation","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111808","source_modified_at":"2026-10-23T21:22:09.150Z","fetched_at":"2026-10-23T21:47:51.402276Z","product":"Apache Traffic Server","vendor":"Apache Software Foundation","versions":[{"status":"affected","version":"8.0.0","lessThanOrEqual":"8.1.11","versionType":"semver"},{"status":"affected","version":"9.0.0","lessThanOrEqual":"9.2.15","versionType":"semver"},{"status":"affected","version":"10.0.0","lessThanOrEqual":"10.1.4","versionType":"semver"},{"status":"affected","version":"10.2.0","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":8.6,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00324,"percentile":0.24223,"score_date":"2026-10-23"},"published_at":"2026-10-21T19:11:59.516Z","modified_at":"2026-10-23T21:22:09.150Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111808","fetched_at":"2026-10-23T21:47:51.402276Z","source_modified_at":"2026-10-23T21:22:09.150Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111808","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc","tags":["vendor-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"yes","technical_impact":"partial","assessed_at":"2026-10-23T20:52:18.296737Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-23T21:22:09.150Z","content_hash":"7bde8876bc82fb26309de8fd73b5c5b599ae8bbc4d71076d35536925bb4887f0"}}