Bug 2529400

Summary: CVE-2026-82474 sudo: Sudo: Policy bypass allows unauthorized program execution via execveat [fedora-all]
Product: [Fedora] Fedora Reporter: Ganesh <gnaik>
Component: sudoAssignee: Alejandro López <allopez>
Status: CLOSED NOTABUG QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: high    
Version: rawhideCC: allopez, kzak, mattdm, rsroka
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["7589012a-428b-4fdd-810a-fdcf96d9a2ec"]}
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Clone Of: Environment:
Last Closed: 2026-09-09 08:09:34 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2525889    

Description Ganesh 2026-09-07 11:52:43 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.

Sudo through 1.9.17p2 fails to apply intercept policy checks to the execveat system call in ptrace-based intercept mode. Users permitted to run specific commands can execute denied programs by calling execveat directly or through fexecve, bypassing policy enforcement and logging.
Comment 1 Alejandro López 2026-09-09 08:09:34 UTC 
sudo in Fedora is not affected because the "intercept" feature is disabled.

I'm considering enabling it with 1.9.18 when it is released, but the fix will be included at that moment.