CVE-2016-10397

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2017-07-10 · updated 2026-06-17
Weakness: CWE-20

Description

In PHP before 5.6.28 and 7.x before 7.0.13, incorrect handling of various URI components in the URL parser could be used by attackers to bypass hostname-specific URL checks, as demonstrated by evil.example.com:80#@good.example.com/ and evil.example.com:80?@good.example.com/ inputs to the parse_url function (implemented in the php_url_parse_ex function in ext/standard/url.c).

Affected products

PHP: through 5.6.27; 7.0.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.0.5 (+7)

References

http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=b061fa909de77085d3822a89ab901b934d0362c4
http://openwall.com/lists/oss-security/2017/07/10/6
http://php.net/ChangeLog-5.php
http://php.net/ChangeLog-7.php
http://www.securityfocus.com/bid/99552
https://bugs.php.net/bug.php?id=73192
https://security.netapp.com/advisory/ntap-20180112-0001/
http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=b061fa909de77085d3822a89ab901b934d0362c4
http://openwall.com/lists/oss-security/2017/07/10/6
http://php.net/ChangeLog-5.php
http://php.net/ChangeLog-7.php
http://www.securityfocus.com/bid/99552

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