UpHeron
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Servers and applications

CVE-2015-4026

The pcntl_exec implementation in PHP before 5.4.41, 5.5.x before 5.5.25, and 5.6.x before 5.6.9 truncates a pathname upon encountering a \x00 character, which might allow remote attackers to bypass intended extension restrictions and execute files with unexpected names via a crafted first argument. NOTE: this vulnerability exists because of an incomplete fix for CVE-2006-7243.

Severity
High 7.5
Published
9 Jun 2015
Last changed
17 Jun 2026
Added to UpHeron
14 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
PHPServers and applications · cpe:a:php:php
  • Version 5.6.8
  • Version 5.6.7
  • Version 5.6.6
  • Version 5.6.5
All 52 release lines
  • Every version up to 5.4.40
  • Version 5.4.39
  • Version 5.5.0-alpha1
  • Version 5.5.0-alpha2
  • Version 5.5.0-alpha3
  • Version 5.5.0-alpha4
  • Version 5.5.0-alpha5
  • Version 5.5.0-alpha6
  • Version 5.5.0-beta1
  • Version 5.5.0-beta2
  • Version 5.5.0-beta3
  • Version 5.5.0-beta4
  • Version 5.5.0-rc1
  • Version 5.5.0-rc2
  • Version 5.5.0
  • Version 5.5.1
  • Version 5.5.2
  • Version 5.5.3
  • Version 5.5.4
  • Version 5.5.5
  • Version 5.5.6
  • Version 5.5.7
  • Version 5.5.8
  • Version 5.5.9
  • Version 5.5.10
  • Version 5.5.11
  • Version 5.5.12
  • Version 5.5.13
  • Version 5.5.14
  • Version 5.5.18
  • Version 5.5.19
  • Version 5.5.20
  • Version 5.5.21
  • Version 5.5.22
  • Version 5.5.23
  • Version 5.5.24
  • Version 5.6.0-alpha1
  • Version 5.6.0-alpha2
  • Version 5.6.0-alpha3
  • Version 5.6.0-alpha4
  • Version 5.6.0-alpha5
  • Version 5.6.0-beta1
  • Version 5.6.0-beta2
  • Version 5.6.0-beta3
  • Version 5.6.0-beta4
  • Version 5.6.2
  • Version 5.6.3
  • Version 5.6.4
  • Version 5.6.5
  • Version 5.6.6
  • Version 5.6.7
  • Version 5.6.8

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2015-4026
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2015-4026