Vulnerability-Lookup

GHSA-7VCF-7M3R-V7X3

Vulnerability from github – Published: 2026-09-21 12:32 – Updated: 2026-09-21 12:32

Details

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.

Severity

8.7 (High)


                  
                    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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-65651"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-674"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-21T12:17:15Z",
    "severity": "HIGH"
  },
  "details": "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\u0027s 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.",
  "id": "GHSA-7vcf-7m3r-v7x3",
  "modified": "2026-09-21T12:32:37Z",
  "published": "2026-09-21T12:32:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-65651"
    },
    {
      "type": "WEB",
      "url": "https://github.com/temporalio/sqlparser/pull/6"
    },
    {
      "type": "WEB",
      "url": "https://github.com/temporalio/sqlparser/pull/7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/temporalio/temporal/pull/11202"
    },
    {
      "type": "WEB",
      "url": "https://github.com/temporalio/sqlparser/commit/0466b6b405accfaa781e4bef417933efc18bcaef"
    },
    {
      "type": "WEB",
      "url": "https://github.com/temporalio/sqlparser/commit/1aae9baceee8e48525da8f56b07bf6a5ca7eb147"
    },
    {
      "type": "WEB",
      "url": "https://github.com/temporalio/sqlparser/tree/v0.1.0"
    },
    {
      "type": "WEB",
      "url": "https://github.com/temporalio/temporal/blob/v0.10.0/common/archiver/filestore/queryParser.go#L77-L132"
    },
    {
      "type": "WEB",
      "url": "https://github.com/temporalio/temporal/releases/tag/v1.30.7"
    },
    {
      "type": "WEB",
      "url": "https://github.com/temporalio/temporal/releases/tag/v1.31.3"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-65651 (GCVE-0-2026-65651)

Vulnerability from cvelistv5 – Published: 2026-09-21 11:34 – Updated: 2026-09-21 15:31

Title

temporalio/sqlparser deeply nested unary expressions can cause a fatal stack overflow during AST traversal

Summary

Severity

8.7 (High)


                        
                          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

7.1 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

6 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-21 15:30 UTC

CWE

CWE-674 - Uncontrolled Recursion

Assigner

Temporal mitre root

References

9 references

URL	Tags
https://github.com/temporalio/sqlparser/commit/1a…	product
https://github.com/temporalio/sqlparser/pull/6	patch
https://github.com/temporalio/sqlparser/commit/04…	patch
https://github.com/temporalio/sqlparser/tree/v0.1.0	product
https://github.com/temporalio/sqlparser/pull/7	patch
https://github.com/temporalio/temporal/pull/11202	patch
https://github.com/temporalio/temporal/blob/v0.10…	product
https://github.com/temporalio/temporal/releases/t…	release-notes
https://github.com/temporalio/temporal/releases/t…	release-notes

Impacted products

2 products

Vendor	Product	Version
Temporal Technologies, Inc.	temporalio/sqlparser	Affected: 0.0.0-20141206041240-1aae9baceee8 , < 0.0.0-20260721183058-0466b6b405ac (semver)
Temporal Technologies, Inc.	Temporal Server	Unknown: 0.0.0 , < 0.10.0 (semver) Affected: 0.10.0 , ≤ 1.29.7 (semver) Affected: 1.30.0 , < 1.30.7 (semver) Affected: 1.31.0 , < 1.31.3 (semver) cpe:2.3:a:temporal:temporal::::::::

Credits

An external security researcher who reported this issue responsibly to Temporal Technologies

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-65651",
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                    "Exploitation": "none"
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2026-09-21T15:30:53.004421Z",
                "version": "2.0.3"
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          "dateUpdated": "2026-09-21T15:31:05.352Z",
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          "shortName": "CISA-ADP"
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        {
          "collectionURL": "https://pkg.go.dev",
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              "name": "ParseStrictDDL"
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              "name": "ParseNext"
            },
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              "name": "String"
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              "name": "Walk"
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            "common/persistence/visibility/store/query/converter.go",
            "common/persistence/visibility/store/sql/query_converter.go",
            "service/matching/workers/worker_query_engine.go"
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              "name": "comparisonExprConverter.Convert"
            },
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              "name": "workerQueryEngine.evaluateComparison"
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            }
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          "value": "The temporalio/sqlparser CVSS scenario uses the reasonable worst case of a network service passing unauthenticated attacker-controlled SQL to the parser and then invoking String or Walk on the resulting AST. Applications that embed the library should reassess the vector for their actual input and privilege boundaries."
        },
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe known affected Temporal Server lower bound is 0.10.0, based on a source-confirmed built-in filestore visibility-archival query path; earlier Server releases are unknown. Additional source-confirmed SQL and Elasticsearch visibility paths begin in later releases. These routes do not require retained worker state. Their availability depends on the deployed visibility or archival configuration, which CVSS Base scoring assumes is enabled when assessing the vulnerable configuration.\u003c/p\u003e"
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          "value": "The known affected Temporal Server lower bound is 0.10.0, based on a source-confirmed built-in filestore visibility-archival query path; earlier Server releases are unknown. Additional source-confirmed SQL and Elasticsearch visibility paths begin in later releases. These routes do not require retained worker state. Their availability depends on the deployed visibility or archival configuration, which CVSS Base scoring assumes is enabled when assessing the vulnerable configuration."
        },
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eThe dynamically confirmed Temporal Server ListWorkers route begins in 1.29.0. In 1.29.x, frontend.ListWorkersEnabled defaults to false; it defaults to true in 1.30.x. Beginning in 1.31.0, the setting remains defined but is no longer honored, and ListWorkers is always enabled. In supported authenticated deployments, ListWorkers requires namespace read permission. The confirmed process-exit route also requires at least one retained worker heartbeat.\u003c/p\u003e"
            }
          ],
          "value": "The dynamically confirmed Temporal Server ListWorkers route begins in 1.29.0. In 1.29.x, frontend.ListWorkersEnabled defaults to false; it defaults to true in 1.30.x. Beginning in 1.31.0, the setting remains defined but is no longer honored, and ListWorkers is always enabled. In supported authenticated deployments, ListWorkers requires namespace read permission. The confirmed process-exit route also requires at least one retained worker heartbeat."
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          "type": "finder",
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          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003etemporalio/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\u0027s 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.\u003c/p\u003e"
            }
          ],
          "value": "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\u0027s 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."
        }
      ],
      "impacts": [
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          "descriptions": [
            {
              "lang": "en",
              "value": "Denial of service caused by runtime-fatal Go stack exhaustion and process termination. No confidentiality or integrity impact was identified."
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          ]
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      "metrics": [
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackVector": "NETWORK",
            "baseScore": 8.7,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "NONE",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "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",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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              "value": "temporalio/sqlparser reasonable worst-case network service embedding"
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "NONE",
            "attackVector": "NETWORK",
            "baseScore": 7.1,
            "baseSeverity": "HIGH",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "HIGH",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "scenarios": [
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              "lang": "en",
              "value": "Temporal Server visibility or archival query path in a supported authenticated deployment"
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            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "exploitMaturity": "NOT_DEFINED",
            "privilegesRequired": "LOW",
            "providerUrgency": "NOT_DEFINED",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "valueDensity": "NOT_DEFINED",
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            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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              "lang": "en",
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        "orgId": "61241ed8-fa44-4f23-92db-b8c443751968",
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      "references": [
        {
          "name": "First affected sqlparser source revision",
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          "url": "https://github.com/temporalio/sqlparser/commit/1aae9baceee8e48525da8f56b07bf6a5ca7eb147"
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          "name": "sqlparser nested-expression fix pull request",
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        {
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        {
          "name": "Temporal Server dependency update",
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        {
          "name": "Temporal Server 0.10.0 source-confirmed archival route",
          "tags": [
            "product"
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          "url": "https://github.com/temporalio/temporal/blob/v0.10.0/common/archiver/filestore/queryParser.go#L77-L132"
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        {
          "name": "Temporal Server 1.30.7",
          "tags": [
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        {
          "name": "Temporal Server 1.31.3",
          "tags": [
            "release-notes"
          ],
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        }
      ],
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              "type": "text/html",
              "value": "\u003cp\u003eUpgrade github.com/temporalio/sqlparser to v0.0.0-20260721183058-0466b6b405ac or later; v0.0.0-20260722001706-17d16cfe1da5 is the preferred upgrade. Temporal Server operators should upgrade to 1.30.7, 1.31.3, or 1.32.0, as appropriate for the deployed minor release line. The parser changes reject excessive nesting before recursive AST consumers receive an attacker-deep tree.\u003c/p\u003e"
            }
          ],
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        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "temporalio/sqlparser deeply nested unary expressions can cause a fatal stack overflow during AST traversal",
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          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "\u003cp\u003eApplications can impose a conservative query-size or nesting limit before parsing and avoid recursively formatting or walking parser-produced trees derived from untrusted input. Temporal Server 1.29 and 1.30 operators can disable ListWorkers when it is unused, disable unused archival reads, and restrict namespace read permission to trusted principals. Go panic recovery is not an effective mitigation for runtime-fatal stack overflow.\u003c/p\u003e"
            }
          ],
          "value": "Applications can impose a conservative query-size or nesting limit before parsing and avoid recursively formatting or walking parser-produced trees derived from untrusted input. Temporal Server 1.29 and 1.30 operators can disable ListWorkers when it is unused, disable unused archival reads, and restrict namespace read permission to trusted principals. Go panic recovery is not an effective mitigation for runtime-fatal stack overflow."
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "61241ed8-fa44-4f23-92db-b8c443751968",
    "assignerShortName": "Temporal",
    "cveId": "CVE-2026-65651",
    "datePublished": "2026-09-21T11:34:05.930Z",
    "dateReserved": "2026-07-22T18:08:48.925Z",
    "dateUpdated": "2026-09-21T15:31:05.352Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

GHSA-7VCF-7M3R-V7X3

CVE-2026-65651 (GCVE-0-2026-65651)

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