CVE Explorer

CVE-2026-28898

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 issu

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:bd3a6726ad93c166abf141c0bb27a7969a9473a614298c4650cb4c6821bc36c7

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"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.","lang":"en"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:c43591501bde751d82ebed5a180a71a4533aa6af29d2ab958994291da8062f39 · sha256:57910a34a03e48aa… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-116","description":"CWE-116 Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:c43591501bde751d82ebed5a180a71a4533aa6af29d2ab958994291da8062f39 · sha256:57910a34a03e48aa… · /containers/adp/0/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"product":"swift-nio-http2","vendor":"Apple","versions":[{"lessThan":"1.44.1","status":"affected","version":"0","versionType":"custom"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:c43591501bde751d82ebed5a180a71a4533aa6af29d2ab958994291da8062f39 · sha256:57910a34a03e48aa… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:c43591501bde751d82ebed5a180a71a4533aa6af29d2ab958994291da8062f39 · sha256:57910a34a03e48aa… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"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.","lang":"en"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:c43591501bde751d82ebed5a180a71a4533aa6af29d2ab958994291da8062f39 · sha256:57910a34a03e48aa… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-116","description":"CWE-116 Improper Encoding or Escaping of Output","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:c43591501bde751d82ebed5a180a71a4533aa6af29d2ab958994291da8062f39 · sha256:57910a34a03e48aa… · /containers/adp/0/problemTypes/0/descriptions/0

Source references

1 source assertion

{"url":"https://github.com/advisories/GHSA-4px2-pw77-vc85"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:c43591501bde751d82ebed5a180a71a4533aa6af29d2ab958994291da8062f39 · sha256:57910a34a03e48aa… · /containers/cna/references/0

Attribution and limitations

CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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