CVE-2026-21428

Katalog CVE

CVSS 7.5 · High EPSS 0,41%

Kerentanan Improper Neutralization of CRLF Sequences ('CRLF Injection') pada yhirose cpp-httplib. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to version 0.30.0, the ``write_headers`` function does not check for CR & LF characters in user supplied headers, allowing untrusted header value to escape header lines. This vulnerability allows attackers to add extra headers, modify request body unexpectedly & trigger an SSRF attack. When combined with a server that supports http1.1 pipelining (springboot, python twisted etc), this can be used for server side request forgery (SSRF). Version 0.30.0 fixes this issue.

Rincian

Terbit di NVD

1 Januari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

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

EPSS (30 hari)

0,41% peluang dieksploitasi; lebih tinggi dari 33,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/yhirose/cpp-httplib/commit/98048a033a532ff22320ce1d11789f8d5710dfcd patch
• https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-wpc6-j37r-jcx7 exploit · advisory pihak ketiga
• https://github.com/yhirose/cpp-httplib/releases/tag/v0.30.0 product · release notes