CVE-2026-6103

Katalog CVE

CVSS 4.3 · Medium EPSS 0,17%

Kerentanan Integer Overflow or Wraparound. Skor CVSS 3.1 4.3 (Medium) menurut php.net.

Deskripsi (NVD)

phar_tar_number() parses the octal size field of a TAR header into a uint32_t with no overflow check. The field is 11 octal digits wide and holds values up to 0x1FFFFFFFF, so a size above 0xFFFFFFFF silently wraps. The parser then skips the wrong number of data blocks and interprets attacker-controlled file content as the next TAR header, which lets a crafted archive inject entries that PharData reports and extracts as if they were genuine.

Rincian

Terbit di NVD

25 September 2026

Terakhir diubah

29 September 2026

Status NVD

Awaiting Analysis

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-190: Integer Overflow or Wraparound

EPSS (30 hari)

0,17% peluang dieksploitasi; lebih tinggi dari 5,5% 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-j3wh-g957-2m85