CVE-2026-91767

Katalog CVE

CVSS 6.5 · Medium EPSS 0,15%

Kerentanan Heap-based Buffer Overflow. Skor CVSS 3.1 6.5 (Medium) menurut php.net.

Deskripsi (NVD)

php_openssl_matches_wildcard_name() in ext/openssl/xp_ssl.c underflows the length argument passed to memchr() when a TLS server certificate presents a wildcard name whose literal characters are together longer than the hostname being verified. A malicious server presenting such a certificate makes the PHP client read up to SIZE_MAX bytes past the end of a heap allocation. The path is reachable from any default client stream, because verify_peer_name is enabled by default.

Rincian

Terbit di NVD

25 September 2026

Terakhir diubah

29 September 2026

Status NVD

Awaiting Analysis

CVSS 3.1

6.5 (Medium), sumber php.net
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-122: Heap-based Buffer Overflow

EPSS (30 hari)

0,15% peluang dieksploitasi; lebih tinggi dari 4,0% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/php/php-src/security/advisories/GHSA-xr7j-rvgx-xq5p