{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-28898", "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "state": "PUBLISHED", "assignerShortName": "apple", "dateReserved": "2026-03-03T16:36:03.983Z", "datePublished": "2026-06-25T18:36:54.046Z", "dateUpdated": "2026-06-25T19:28:38.970Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "swift-nio-http2's HTTP/2-to-HTTP/1.1 codec did not validate pseudo-header values for control characters before placing them into the translated HTTP/1.1 message."}]}], "affected": [{"vendor": "Apple", "product": "swift-nio-http2", "versions": [{"version": "0", "status": "affected", "lessThan": "1.44.1", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "swift-nio-http2's HTTP/2-to-HTTP/1.1 codec did not validate pseudo-header values for control characters before placing them into the translated HTTP/1.1 message. swift-nio-http2 1.44.1 adds validation of all pseudo-header values (:path, :authority, :scheme, :method, and :status) at both the HPACK header validation layer and the HTTP/2-to-HTTP/1.1 translation layer. Requests or responses containing CR, LF, or NUL bytes in any pseudo-header value are now rejected with a connection error. This issue is fixed in swift-nio-http2 1.44.1."}], "references": [{"url": "https://github.com/advisories/GHSA-4px2-pw77-vc85"}], "providerMetadata": {"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple", "dateUpdated": "2026-06-25T18:36:54.046Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-116", "lang": "en", "description": "CWE-116 Improper Encoding or Escaping of Output"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-06-25T19:28:33.856470Z", "id": "CVE-2026-28898", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-25T19:28:38.970Z"}}]}}

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{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,1.44.1)"}}], "enrichment": {"confidence": 95.0, "confidence_source": "matching", "scores": [{"score": 95.0, "source": "matching"}]}, "original": {"product": "swift-nio-http2", "source": "cna", "vendor": "Apple"}, "product": "swiftnio_http/2", "vendor": "apple"}], "created": "2026-06-25T21:30:11.753318+00:00", "title": "Control Characters in HTTP/2 Pseudo-Headers Not Validated in swift-nio-http2", "updated": "2026-06-26T07:15:16.846664+00:00", "vendors": ["apple", "apple$PRODUCT$swiftnio_http/2"]}