BIT-php-2026-91767

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Import Source
https://github.com/bitnami/vulndb/tree/main/data/php/BIT-php-2026-91767.json
JSON Data
https://api.osv.dev/v1/vulns/BIT-php-2026-91767
Aliases
Published
2026-10-01T09:34:08Z
Modified
2026-10-01T10:11:18Z
Summary
Heap-buffer-overflow in php_openssl_matches_wildcard_name on crafted server cert wildcard CN
Details

php_openssl_matches_wildcard_name() in ext/openssl/xp_ssl.c underflows the length argument passed to memchr() when a TLS server certificate presents a wildcard name whose literal characters are together longer than the hostname being verified. A malicious server presenting such a certificate makes the PHP client read up to SIZE_MAX bytes past the end of a heap allocation. The path is reachable from any default client stream, because verify_peer_name is enabled by default.

Database specific 
{
    "cpes":  [
        "cpe:2.3:a:php:php:*:*:*:*:*:*:*:*"
    ],
    "severity":  "Medium"
}
References

Affected packages

Bitnami / php

Package

Name
php
Purl
pkg:bitnami/php

Severity

  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
8.2.0
Fixed
8.2.34
Introduced
8.3.0
Fixed
8.3.35
Introduced
8.4.0
Fixed
8.4.26
Introduced
8.5.0
Fixed
8.5.11

Database specific

source 
"https://github.com/bitnami/vulndb/tree/main/data/php/BIT-php-2026-91767.json"