Bug 2506674 (CVE-2026-66140)

Summary: CVE-2026-66140 exim: Exim: Privilege escalation via directory traversal due to mishandled queue-name arguments
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Exim. This vulnerability allows an attacker to perform directory traversal by mishandling arguments related to queue-name. This could enable unauthorized access to files outside of the designated spool area, potentially leading to a gain of privileges.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2507997, 2507998    
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Description OSIDB Bzimport 2026-07-24 05:05:50 UTC
Exim before 4.99.5 allows directory traversal to access files outside of the spool area, and consequently gain privileges, because arguments related to queue-name are mishandled.