{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-65651 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-65651 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-65651 is a high-severity denial of service vulnerability in Temporal Server, published on 21 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-65651 and fix it if it is affected.\n\nWhat it is: CVE-2026-65651 is a high-severity denial of service vulnerability in Temporal Server, published on 21 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-65651 in the wild and no public exploit code.\n\nAffected product: Temporal Server. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-65651/ (Markdown: https://insights.sbomify.com/CVE-2026-65651/index.md)","id":"CVE-2026-65651","markdown":"https://insights.sbomify.com/CVE-2026-65651/index.md","name":"CVE-2026-65651","record":{"aliases":["GHSA-7vcf-7m3r-v7x3"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Go SQL parser library","requires_auth":"none","summary":"An attacker can cause a fatal stack overflow in Temporal Server by submitting deeply nested SQL, leading to process termination and denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Temporal","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"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"},"cwes":[{"id":"CWE-674","name":"Uncontrolled Recursion"}],"description":"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"temporalio/sqlparser deeply nested unary expressions can cause a fatal stack overflow during AST traversal","id":"CVE-2026-65651","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":9,"next":{"headline":"temporalio/tchannel-go malformed checksum type causes process termination","id":"CVE-2026-65652"},"packages":[],"prev":{"headline":"Denial of service in Elgg","id":"CVE-2026-65650"},"products":["Temporal Server","temporalio/sqlparser"],"published":"2026-09-21","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-21","vendors":["Temporal Technologies, Inc."]},"summary":"An attacker can cause a fatal stack overflow in Temporal Server by submitting deeply nested SQL, leading to process termination and denial of service.","url":"https://insights.sbomify.com/CVE-2026-65651/"}