CVE-2026-49286

Katalog CVE

CVSS 8.1 · High EPSS 0,95%

Kerentanan Deserialization of Untrusted Data. Skor CVSS 3.1 8.1 (High) menurut github.com.

Deskripsi (NVD)

PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.6.0, `pontedilana/php-weasyprint` guarded the output filename against the `phar://` stream wrapper with a case-sensitive blacklist. PHP stream wrappers are case-insensitive, so `PHAR://`, `Phar://`, etc. bypass the check and reach `fileExists()` (`file_exists()`) in `prepareOutput()`. On PHP 7 (which the library still supports — PHP 7.4+), this triggers deserialization of a crafted PHAR archive's metadata, leading to remote code execution. This is the patch-bypass of CVE-2023-28115. The same issue and fix were handled upstream in KnpLabs/snappy (GHSA-92rv-4j2h-8mjj). PhpWeasyPrint version 2.6.0 contains a patch for the issue.

Rincian

Terbit di NVD

19 Juni 2026

Terakhir diubah

22 Juni 2026

Status NVD

Deferred

CVSS 3.1

8.1 (High), sumber github.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-502: Deserialization of Untrusted Data

EPSS (30 hari)

0,95% peluang dieksploitasi; lebih tinggi dari 60,2% 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/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj
• https://github.com/pontedilana/php-weasyprint/commit/d1aa487722b5a3cab9b222b85fdb5608a5a550c3
• https://github.com/pontedilana/php-weasyprint/releases/tag/2.6.0
• https://github.com/pontedilana/php-weasyprint/security/advisories/GHSA-2fmj-p74r-3wjm