CVE-2026-7258

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

BIT-PHP-MIN-2026-7258 Out-of-bounds read in urldecode() on NetBSD

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...

BIT-PHP-2026-7258 Out-of-bounds read in urldecode() on NetBSD

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...

BIT-LIBPHP-2026-7258 Out-of-bounds read in urldecode() on NetBSD

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...

PT-2026-40296

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...

PT-2026-40306

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...

SUSE CVE-2026-7258

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...

CVE-2026-7258

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...

CVE-2026-7258

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...

UBUNTU-CVE-2026-7258

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...

CVE-2026-7258 Out-of-bounds read in urldecode() on NetBSD

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...

CVE-2026-7258

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...

CVE-2026-7258

CVE-2026-7258 describes an out-of-bounds access in PHP’s urldecode() when an unsigned/signed char is passed to ctype checks on systems with certain default signed char configurations (e.g., NetBSD), potentially triggering a denial of service. Affected PHP releases: 8.2.x before 8.2.31, 8.3.x befo...

CVE-2026-7258 Out-of-bounds read in urldecode() on NetBSD

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...

CVE-2026-7258

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...

CVE-2026-7258 Out-of-bounds read in urldecode() on NetBSD

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...

CVE-2026-7258: Out-of-bounds Read

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...

PHP: PHP: Denial of Service via improper handling of signed characters in ctype functions

A flaw was found in PHP. Some functions, including urldecode, incorrectly pass signed characters to character type ctype functions. On certain systems, this can lead to accessing memory with a negative offset. This vulnerability can be exploited by an attacker to trigger a denial of service DoS,...

PT-2026-39446

Name of the Vulnerable Software and Affected Versions PHP versions 8.2.0 through 8.2.30 PHP versions 8.3.0 through 8.3.30 PHP versions 8.4.0 through 8.4.20 PHP versions 8.5.0 through 8.5.5 Description Certain functions, including urldecode, pass signed characters to ctype functions such as...

CVE-2026-22204: Improper Input Validation

wpDiscuz before 7.6.47 contains an email header injection vulnerability that allows attackers to manipulate mail recipients by injecting malicious data into the commentauthoremail cookie. Attackers can craft a malicious cookie value that, when processed through urldecode and passed to wpmail...