CVEvulnerability

CVE-2026-7258

6.3 MEDIUM Published 2026-05-10 Modified 2026-07-24 Official page ↗
Status
Analyzed
Published
2026-05-10
Last modified
2026-07-24
Assigner
[email protected]
CVSS 4.0 ([email protected])
6.3 MEDIUM — CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Amber
CVSS 3.1 ([email protected])
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-125

Description

In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, some functions, including urldecode(), pass signed char to ctype functions (like isxdigit()). On the systems with default signed char and optimized table-lookup ctype functions - such as NetBSD - this can lead to accessing array with negative offset, which can trigger a denial of service.

Affected configurations

• php php (>= 8.2.0 < 8.2.21) • php php (>= 8.3.0 < 8.3.31) • php php (>= 8.4.0 < 8.4.21) • php php (>= 8.5.0 < 8.5.6)

Related

Weakness · CWE (1)

  • CWE-125 Out-of-bounds Read weakness

References