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.
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Affected Vendors & Products
References
History
Tue, 12 May 2026 17:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Php
Php php |
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| CPEs | cpe:2.3:a:php:php:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Php
Php php |
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| Metrics |
cvssV3_1
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Mon, 11 May 2026 15:15:00 +0000
| Type | Values Removed | Values Added |
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| Metrics |
ssvc
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Sun, 10 May 2026 05:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Php Group
Php Group php |
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| Vendors & Products |
Php Group
Php Group php |
Sun, 10 May 2026 04:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Out-of-bounds read in urldecode() on NetBSD | |
| Weaknesses | CWE-125 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: php
Published: 2026-05-10T04:28:14.520Z
Updated: 2026-05-11T13:06:10.908Z
Reserved: 2026-04-28T04:58:17.457Z
Link: CVE-2026-7258
Updated: 2026-05-11T13:06:07.848Z
Status : Analyzed
Published: 2026-05-10T05:16:11.360
Modified: 2026-05-12T17:41:43.347
Link: CVE-2026-7258
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