AZL-99093

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AZL-99093

Summary: CVE-2026-33630 affecting package fluent-bit for versions less than 3.1.10-7

Details: c-ares is an asynchronous resolver library. From ver 1.32.3 until 1.34.7, a use-after-free / double-free in c-ares' query-completion handling. The same flaw — a query's callback being invoked while the query is still linked in the channel's internal lookup structures — is present at multiple points in the resend/finish path (timeout handling, response handling, and query dispatch). If the query, or for ares_getaddrinfo() the owning host_query, is freed as a side effect of that callback, it is then accessed and/or freed a second time. This vulnerability is fixed in ver 1.34.7.

References: https://nvd.nist.gov/vuln/detail/CVE-2026-33630