{"cve":"CVE-2015-8866","nvd":{"published":"2016-05-22T01:59:05.727","modified":"2026-06-17T00:35:23.877","status":"Modified","description":"ext/libxml/libxml.c in PHP before 5.5.22 and 5.6.x before 5.6.6, when PHP-FPM is used, does not isolate each thread from libxml_disable_entity_loader changes in other threads, which allows remote attackers to conduct XML External Entity (XXE) and XML Entity Expansion (XEE) attacks via a crafted XML document, a related issue to CVE-2015-5161.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H","score":9.6},"cwes":["CWE-611"],"references":["http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=de31324c221c1791b26350ba106cc26bad23ace9","http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.html","http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.html","http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.html","http://rhn.redhat.com/errata/RHSA-2016-2750.html"],"products":["canonical:ubuntu_linux","opensuse:leap","opensuse:opensuse","php:php","suse:linux_enterprise_module_for_web_scripting","suse:linux_enterprise_software_development_kit"],"source":"nvd","synced_at":"2026-10-19T20:38:51.654415212+00:00"},"epss":{"cve":"CVE-2015-8866","score":0.04171,"percentile":0.909,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}