CVE-2026-65651temporalio/sqlparser deeply nested unary expressions can cause a fatal stack overflow during AST traversal
Updated under an hour ago ()
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It affects Temporal Technologies, Inc. temporalio/sqlparser and 1 other product. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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Free account, 1 product
temporalio/sqlparser accepts SQL containing deeply nested unary expressions and can return a correspondingly deep abstract syntax tree without enforcing an applicable nesting limit. The library's String and Walk operations recursively traverse that tree. An application that parses attacker-controlled SQL and later formats or walks the returned tree can encounter a runtime-fatal Go stack overflow that terminates the process; Go panic recovery cannot contain this condition. Temporal Server passes caller-controlled query input through the affected parser in archival, visibility, and worker-query paths. In affected validation paths, the Server recursively formats an invalid expression while constructing an error. In a supported authenticated deployment, a caller with namespace read permission can terminate the receiving Frontend or Matching process. The dynamically confirmed ListWorkers route additionally requires at least one retained worker heartbeat. Repeated requests can sustain a denial of service. The issue affects availability only; no confidentiality or integrity impact was identified.
- CVSS
- 8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-674
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Temporal
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Temporal Technologies, Inc. temporalio/sqlparser temporal_technologies:temporalio_sqlparser (from the name) | from 0.0.0-20141206041240-1aae9baceee8 before 0.0.0-20260721183058-0466b6b405ac | CNA record |
Temporal Technologies, Inc. Temporal Server temporal:temporal | from 0.0.0 before 0.10.0 status unknown; from 0.10.0 through 1.29.7; from 1.30.0 before 1.30.7; from 1.31.0 before 1.31.3 | CNA record |
References
- https://github.com/temporalio/sqlparser/commit/1aae9baceee8e48525da8f56b07bf6a5ca7eb147product
- https://github.com/temporalio/sqlparser/pull/6patch
- https://github.com/temporalio/sqlparser/commit/0466b6b405accfaa781e4bef417933efc18bcaefpatch
- https://github.com/temporalio/sqlparser/tree/v0.1.0product
- https://github.com/temporalio/sqlparser/pull/7patch
- https://github.com/temporalio/temporal/pull/11202patch
- https://github.com/temporalio/temporal/blob/v0.10.0/common/archiver/filestore/queryParser.go#L77-L132product
- https://github.com/temporalio/temporal/releases/tag/v1.30.7release-notes
- https://github.com/temporalio/temporal/releases/tag/v1.31.3release-notes
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.