UpHeron
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Servers and applications

CVE-2015-8866

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.

Severity
Critical 9.6
Published
22 May 2016
Last changed
17 Jun 2026
Added to UpHeron
14 Oct 2026
Fixed in
5.5.22, 5.6.6, 7.0.27, 7.1.13, 7.2.1
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • From 5.5.0 before 5.5.22
  • From 5.6.0 before 5.6.6
  • From 7.0.0 before 7.0.27
  • From 7.1.0 before 7.1.13
  • From 7.2.0 before 7.2.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-8866
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-8866