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CVE PROGRAM SOURCE RECORD8.7 High

CVE-2026-16651

temporalio/sqlparser malformed MySQL version comments can cause a panic

Description

temporalio/sqlparser can panic when Parse, ParseStrictDDL, or ParseNext processes a MySQL version comment whose contents are empty or consist only of one to five decimal digits. ExtractMysqlComment does not check the -1 result returned by strings.IndexFunc before using it as a slice boundary. The resulting Go runtime panic propagates unless the caller recovers it on the parsing goroutine, so applications that parse attacker-controlled SQL can terminate. Temporal Server exposes the affected parser through ListWorkers. When that API is enabled, an authenticated caller with namespace read permission can submit a malformed query that terminates the receiving Matching process. Repeated requests can sustain a denial of service. The issue affects availability only; no confidentiality or integrity impact was identified.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Temporal Technologies, Inc. temporalio/sqlparser

Default version status: unaffected

  • 0.0.0-20180604150908-b055e9c9b4fa to < 0.0.0-20260721183040-74181ffcbaafaffected

Temporal Technologies, Inc. Temporal Server

Default version status: unaffected

  • 1.29.0 to ≤ 1.29.7affected
  • 1.30.0 to < 1.30.7affected
  • 1.31.0 to < 1.31.3affected

References