CVE-2026-120644
Published:November 03, 2026
Updated:November 04, 2026
CGI::Cookie versions before 5.00 for Perl allow cookie attribute injection via unvalidated path, domain and expires values.
The path, domain and expires values are written into the Set-Cookie header without checking for semicolons or control characters.
An application that sets them from request data can be made to add other cookie attributes, such as Domain or SameSite.
Affected Packages
https://github.com/leejo/CGI.pm.git (GITHUB):
Affected version(s) =initial-import <v5.01 || >=release-2-28 <v5.01 || >=release-2_58 <v5.01 || >=release-1_62 <v5.01 || =release_2-70 <v5.01 || >=release-2_751 <v5.01 || >=release-3_01 <v5.01 || =version-3_23 <v5.01 || >=v3.51 <v5.01 || >=v4.00 <v5.01 || =4.69 <v5.01Fix Suggestion:
Update to version v5.01Related Resources (7)
Do you need more information?
Contact UsCVSS v4
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Weakness Type (CWE)
Improper Encoding or Escaping of Output
EPSS
Base Score:
0.21