CVE-2026-33128

Katalog CVE

CVSS 10.0 · Critical EPSS 0,69%

Kerentanan Improper Neutralization of CRLF Sequences ('CRLF Injection') pada h3. Skor CVSS 3.1 10.0 (Critical) menurut NVD.

Deskripsi (NVD)

H3 is a minimal H(TTP) framework. In versions prior to 1.15.6 and between 2.0.0 through 2.0.1-rc.14, createEventStream is vulnerable to Server-Sent Events (SSE) injection due to missing newline sanitization in formatEventStreamMessage() and formatEventStreamComment(). An attacker who controls any part of an SSE message field (id, event, data, or comment) can inject arbitrary SSE events to connected clients. This issue is fixed in versions 1.15.6 and 2.0.1-rc.15.

Rincian

Terbit di NVD

20 Maret 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

10.0 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-93: Improper Neutralization of CRLF Sequences ('CRLF Injection')

EPSS (30 hari)

0,69% peluang dieksploitasi; lebih tinggi dari 51,3% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/h3js/h3/security/advisories/GHSA-22cc-p3c6-wpvm exploit · advisory vendor
• https://github.com/h3js/h3/commit/7791538e15ca22437307c06b78fa155bb73632a6 patch
• https://github.com/h3js/h3/blob/52c82e18bb643d124b8b9ec3b1f62b081f044611/src/utils/internal/event-stream.ts#L1... product