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CVE-2026-47783 is an observable timing discrepancy in memcached versions before 1.6.42 that affects SASL password-database authentication. In sasl_server_userdb_checkpass, username lookup stops scanning when it encounters a valid username. The early exit causes authentication attempts for valid and invalid usernames to have measurably different response times, enabling username enumeration through timing analysis.
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What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
19 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A memcached vulnerability that permits username enumeration through a timing side channel. The notice identifies installed memcached packages on Rocky Linux 10.2 as affected.
An Important-severity network-reachable vulnerability with high confidentiality, integrity, and availability impact, requiring high attack complexity and no privileges or user interaction. The affected component is not specified in the provided content.
A network-accessible vulnerability rated Important, with high potential impact to confidentiality, integrity, and availability if successfully exploited. The provided CVSS vector indicates exploitation requires high attack complexity, requires no privileges or user interaction, and has unchanged scope.
A timing side-channel vulnerability in memcached SASL password-database authentication that can disclose information about valid usernames.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.