Bug 2454724 (CVE-2026-35541)

Summary: CVE-2026-35541 roundcubemail: Roundcube Webmail: Unauthorized password change due to type confusion vulnerability
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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 Roundcube Webmail. Incorrect password comparison within the password plugin can lead to a type confusion vulnerability. This allows an attacker to change a user's password without needing to know the old password, potentially leading to unauthorized access to the user's webmail account.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2454792, 2454793    
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Description OSIDB Bzimport 2026-04-03 05:02:08 UTC
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Incorrect password comparison in the password plugin could lead to type confusion that allows a password change without knowing the old password.