VULNERABILITY INTELLIGENCE
CVE-2011-2766
CVSS score7.5 HIGH
EPSS probability7.24%
CISA KEVNot currently listed
Published2011-09-23
Last modified2026-06-16
CVSS vectorAV:N/AC:L/Au:N/C:P/I:P/A:P
Description
The FCGI (aka Fast CGI) module 0.70 through 0.73 for Perl, as used by CGI::Fast, uses environment variable values from one request during processing of a later request, which allows remote attackers to bypass authentication via crafted HTTP headers.
Weakness classification
- CWE-287: Improper Authentication
Primary references
- cve@mitre.org — Exploit, Issue Tracking, Mailing List, Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Mailing List, Third Party Advisory
- cve@mitre.org — Third Party Advisory, VDB Entry
- cve@mitre.org — Exploit, Issue Tracking, Third Party Advisory
- cve@mitre.org — Third Party Advisory, VDB Entry
- cve@mitre.org — Broken Link
- cve@mitre.org — Broken Link
- cve@mitre.org — Exploit, Patch, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Mailing List, Third Party Advisory