CVE-2026-94444
Published:October 08, 2026
Updated:October 27, 2026
Previously, a user operating inside of a malicious Go project that defines a bogus golang.org/fips140 and operates a malicious GOMODPROXY the user chooses to connect to can serve an arbitrary module in its place. We now unpack the trusted ziphash for the bundled golang.org/fips140 module and construct its entry in the GOMODCACHE such that it can be verified by the toolchain.
Affected Packages
https://github.com/golang/go.git (GITHUB):
Affected version(s) >=go1.27.0 <go1.27.2Fix Suggestion:
Update to version go1.27.2https://github.com/golang/go.git (GITHUB):
Affected version(s) >=go1.24.0 <go1.26.9Fix Suggestion:
Update to version go1.26.9github.com/golang/go (GO):
Affected version(s) >=go1.24.0 <go1.26.9Fix Suggestion:
Update to version go1.26.9github.com/golang/go (GO):
Affected version(s) >=go1.27.0 <go1.27.2Fix Suggestion:
Update to version go1.27.2Related Resources (5)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.5
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.8
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Validation of Integrity Check Value
EPSS
Base Score:
0.10