{"cve":"CVE-2025-14987","nvd":{"published":"2025-12-30T21:15:43.343","modified":"2026-06-17T08:36:53.680","status":"Deferred","description":"When system.enableCrossNamespaceCommands is enabled (on by default), the Temporal server permits certain workflow task commands (e.g. StartChildWorkflowExecution, SignalExternalWorkflowExecution, RequestCancelExternalWorkflowExecution) to target a different namespace than the namespace authorized at the gRPC boundary. The frontend authorizes RespondWorkflowTaskCompleted based on the outer request namespace, but the history service later resolves and executes the command using the namespace embedded in command attributes without authorizing the caller for that target namespace. This can allow a worker authorized for one namespace to create, signal, or cancel workflows in another namespace.\nThis issue affects Temporal: through 1.29.1. Fixed in 1.27.4, 1.28.2, 1.29.2.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L","score":5.3},"cvss_v3":null,"cwes":["CWE-863"],"references":["https://github.com/temporalio/temporal/releases/tag/v1.27.4","https://github.com/temporalio/temporal/releases/tag/v1.28.2","https://github.com/temporalio/temporal/releases/tag/v1.29.2"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:18:08.089039631+00:00"},"epss":{"cve":"CVE-2025-14987","score":0.00401,"percentile":0.3441,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-hmhp-gh8m-c8xp","url":"https://osv.dev/vulnerability/GHSA-hmhp-gh8m-c8xp","summary":"Temporal has an Incorrect Authorization vulnerability","modified":"2026-02-03T03:14:41.848456Z","packages":[{"ecosystem":"Go","name":"go.temporal.io/server","purl":"pkg:golang/go.temporal.io/server","ranges":["<1.27.4"],"fixed":["1.27.4"]},{"ecosystem":"Go","name":"go.temporal.io/server","purl":"pkg:golang/go.temporal.io/server","ranges":[">=1.28.0 <1.28.2"],"fixed":["1.28.2"]},{"ecosystem":"Go","name":"go.temporal.io/server","purl":"pkg:golang/go.temporal.io/server","ranges":[">=1.29.0 <1.29.2"],"fixed":["1.29.2"]},{"ecosystem":"Go","name":"go.temporal.io/server","purl":"pkg:golang/go.temporal.io/server","ranges":[">=1.29.0-0 <1.29.0-135.0.0.20251218190115-b292a32bacdf"],"fixed":["1.29.0-135.0.0.20251218190115-b292a32bacdf"]}]},{"id":"GO-2026-4273","url":"https://osv.dev/vulnerability/GO-2026-4273","summary":"Temporal has an Incorrect Authorization vulnerability in go.temporal.io/server","modified":"2026-01-14T20:42:11.488728Z","packages":[{"ecosystem":"Go","name":"go.temporal.io/server","purl":"pkg:golang/go.temporal.io/server","ranges":["<1.27.4",">=1.28.0 <1.28.2",">=1.29.0 <1.29.2"],"fixed":["1.27.4","1.28.2","1.29.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}