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PHP CVEs

Vulnerabilities in the PHP language itself, and which PHP versions they affect.

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CVE-2015-2326

MEDIUM 5.5 CVSS 3.1
Published
January 14, 2020
Last modified
June 17, 2026
NVD status
Modified
Reported by
cve@mitre.org
Weakness
CWE-125
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Description

The pcre_compile2 function in PCRE before 8.37 allows context-dependent attackers to compile incorrect code and cause a denial of service (out-of-bounds read) via regular expression with a group containing both a forward referencing subroutine call and a recursive back reference, as demonstrated by "((?+1)(\1))/".

Affected products and versions

  • PHP — From 5.4.0 (including) to 5.4.41 (excluding)
  • PHP — From 5.5.0 (including) to 5.5.26 (excluding)
  • PHP — From 5.6.0 (including) to 5.6.9 (excluding)

References

  • lists.opensuse.org http://lists.opensuse.org/opensuse-updates/2015-05/msg00014.html Mailing List, Third Party Advisory
  • bugs.exim.org https://bugs.exim.org/show_bug.cgi?id=1592 Exploit, Issue Tracking, Permissions Required, Third Party Advisory
  • fortiguard.com https://fortiguard.com/zeroday/FG-VD-15-016 Third Party Advisory
  • www.pcre.org https://www.pcre.org/original/changelog.txt Release Notes, Third Party Advisory
  • nvd.nist.gov Official NVD record