CVE-2026-7258

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Source
https://cve.org/CVERecord?id=CVE-2026-7258
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-7258.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-7258
Aliases
Downstream
Related
Published
2026-05-10T04:28:14.520Z
Modified
2026-06-05T13:59:14.726396217Z
Severity
  • 6.3 (Medium) CVSS_V4 - 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/U:Amber CVSS Calculator
Summary
Out-of-bounds read in urldecode() on NetBSD
Details

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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/7xxx/CVE-2026-7258.json",
    "cwe_ids": [
        "CWE-125"
    ],
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "8.2.*"
                },
                {
                    "fixed": "8.2.31"
                },
                {
                    "introduced": "8.3.*"
                },
                {
                    "fixed": "8.3.31"
                },
                {
                    "introduced": "8.4.*"
                },
                {
                    "fixed": "8.4.21"
                },
                {
                    "introduced": "8.5.*"
                },
                {
                    "fixed": "8.5.6"
                }
            ],
            "source": "AFFECTED_FIELD"
        },
        {
            "extracted_events": [
                {
                    "fixed": "8.2.31"
                },
                {
                    "fixed": "8.3.31"
                },
                {
                    "fixed": "8.4.21"
                },
                {
                    "fixed": "8.5.6"
                }
            ],
            "source": "DESCRIPTION"
        }
    ],
    "cna_assigner": "php"
}
References

Affected packages

Git / github.com/php/php-src

Affected ranges

Type
GIT
Repo
https://github.com/php/php-src
Events
Introduced
70ee6c20ad97e02c2b8098aeea96fefbbc3ac5c2
Fixed
482ca6c19c4d776c37bcdd5823edd524f4199cfa
Database specific 
{
    "extracted_events": [
        {
            "introduced": "8.2.0"
        },
        {
            "fixed": "8.2.21"
        }
    ],
    "cpe": "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*",
    "source": "CPE_RANGE"
}

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-7258.json"