By Isaac • November 2, 2026 7:18 am •
Solana validator operators running Ubuntu have been told to act immediately against a critical Linux kernel vulnerability while they wait for a fixed operating-system package.
The warning is about the servers underneath some Solana validators, not a flaw in Solana’s protocol. That distinction matters: the network has not been reported down, and the public guidance does not say validators have already been compromised.
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According to CryptoSlate, Anza alerted mainnet-beta operators after CVE-2026-98432 emerged as a critical Linux networking issue. The report says the flaw carries a 9.8 severity score and could permit remote compromise under affected configurations.
Tim Garcia, the Solana Foundation’s validator relations lead, said the vulnerability had been patched in the upstream Linux kernel
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