CVE-2026-28898 - Vulnerability Details - OpenCVE

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.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Exploitation none

Automatable yes

Technical Impact partial

No data.

No data.

No data.

No data.

References

Link	Providers
https://github.com/advisories/GHSA-4px2-pw77-vc85

History

Thu, 25 Jun 2026 20:30:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-116
Metrics		cvssV3_1 `{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Thu, 25 Jun 2026 19:00:00 +0000

Type	Values Removed	Values Added
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. 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		https://github.com/advisories/GHSA-4px2-pw77-vc85

MITRE

Status: PUBLISHED

Assigner: apple

Published: 2026-06-25T18:36:54.046Z

Updated: 2026-06-25T19:28:38.970Z

Reserved: 2026-03-03T16:36:03.983Z

Link: CVE-2026-28898

Vulnrichment

Updated: 2026-06-25T19:23:57.755Z

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

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