CVE-2026-7258
highpriority · track · 30EPSS 0.004 · 30 %ileDEEURUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–high · 1.7–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (51)
Products and version ranges known to be affected.
advisories (5)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-1433PHP: Mehrere SchwachstellenDeutsch2026-05-07csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in PHP ausnutzen, um beliebigen Programmcode auszuführen, SQL-Injection- oder Cross-Site-Scripting-Angriffe durchzuführen, Daten zu manipulieren, vertrauliche Informationen offenzulegen oder einen Denial-of-Service-Zustand zu verursachen.
- WID-SEC-W-2026-2455Oracle Solaris Drittanbieterkomponenten: Mehrere SchwachstellenDeutsch2026-07-21csaf · cert_bundDE
Ein entfernter, anonymer oder authentisierter Angreifer kann mehrere Schwachstellen in verschiedenen Komponenten von Drittanbietern in Oracle Solaris ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
- BIT-libphp-2026-7258Out-of-bounds read in urldecode() on NetBSD2026-05-12vendor · osvUS
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.
- BIT-php-2026-7258Out-of-bounds read in urldecode() on NetBSD2026-05-12vendor · osvUS
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.
- BIT-php-min-2026-7258Out-of-bounds read in urldecode() on NetBSD2026-05-12vendor · osvUS
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.
also known as (7)
Other names and identifiers for this entity.
- CNNVD-202605-2028cnnvd
- EUVD-2026-28968enisa_euvd
- BDU:2026-08591fstec_bdu
- BIT-libphp-2026-7258osv
- BIT-php-2026-7258osv
- BIT-php-min-2026-7258osv
- GHSA-m8rr-4c36-8gq4osv
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
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