{"cve":"CVE-2015-8386","nvd":{"published":"2015-12-02T01:59:10.400","modified":"2026-06-17T00:34:26.023","status":"Modified","description":"PCRE before 8.38 mishandles the interaction of lookbehind assertions and mutually recursive subpatterns, which allows remote attackers to cause a denial of service (buffer overflow) or possibly have unspecified other impact via a crafted regular expression, as demonstrated by a JavaScript RegExp object encountered by Konqueror.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-119"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2016-January/174931.html","http://rhn.redhat.com/errata/RHSA-2016-1025.html","http://rhn.redhat.com/errata/RHSA-2016-2750.html","http://vcs.pcre.org/pcre/code/trunk/ChangeLog?view=markup","http://www-01.ibm.com/support/docview.wss?uid=isg3T1023886"],"products":["fedoraproject:fedora","oracle:linux","pcre:perl_compatible_regular_expression_library","php:php"],"source":"nvd","synced_at":"2026-10-19T20:37:45.466985407+00:00"},"epss":{"cve":"CVE-2015-8386","score":0.0687,"percentile":0.94057,"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."]}