Bug 2548366

Summary: CVE-2026-94444 golang: cmd/go: arbitrary code execution via untrusted module proxy [fedora-all]
Product: [Fedora] Fedora Reporter: Yadnyawalk Tale <ytale>
Component: golangAssignee: Alejandro Sáez Morollón <asm>
Status: NEW --- QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: amurdaca, asm, go-sig, jcajka
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["2f80504e-ae73-4f31-b99c-aefd60679af4"]}
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On:    
Bug Blocks: 2548343    

Description Yadnyawalk Tale 2026-10-09 05:23:24 UTC 
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

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.