Bug 2480088 (CVE-2026-47784)

Summary: CVE-2026-47784 memcached: Memcached: Information disclosure via timing side channel
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in memcached. This vulnerability involves a timing side channel during SASL (Simple Authentication and Security Layer) password database authentication. A remote attacker could potentially exploit the timing differences in the password verification process to infer sensitive password data. This could lead to unauthorized access to the memcached instance.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On: 2480385    
Bug Blocks:    

Description OSIDB Bzimport 2026-05-20 07:01:15 UTC
In memcached before 1.6.42, password data for SASL password database authentication has a timing side channel because memcmp is used by sasl_server_userdb_checkpass.