Reliance on Untrusted Inputs in a Security Decision

Overview Affected versions of this package are vulnerable to Reliance on Untrusted Inputs in a Security Decision through the Nexus callback routing logic in chasm/lib/callback/request.go and components/callbacks/request.go. An attacker can make the History service send a state-changing internal...

Reliance on Untrusted Inputs in a Security Decision

Overview Affected versions of this package are vulnerable to Reliance on Untrusted Inputs in a Security Decision through the Nexus callback routing logic in chasm/lib/callback/request.go and components/callbacks/request.go. An attacker can make the History service send a state-changing internal...

Unchecked Input for Loop Condition

Overview Affected versions of this package are vulnerable to Unchecked Input for Loop Condition due to unbounded next-action-time search in the schedule spec evaluation logic in service/worker/scheduler/spec.go and the scheduler/frontend list-matching-time paths. An authenticated caller with...

CVE-2026-89139

Temporal Server compiles a Worker Controller Instance module into its Worker Service, and that module registers a compute provider named subprocess whose function is to launch a worker by running a command on the machine hosting the Worker Service. The program name and the argument vector that...

CVE-2026-87858

Temporal Server decided whether a Workflow completion callback was internal by reading a caller-supplied HTTP header. An authenticated caller holding only write permission in a single namespace could attach a completion callback whose URL host matched the configured callback address allowlist,...

CVE-2026-16652

Temporal Server did not bound the work performed while searching for a Schedule's next action time. An authenticated caller with namespace write permission could create or update a Schedule that combines a fine-grained cadence with an exclusion calendar that rejects every candidate time, causing...

CVE-2026-89139 Temporal Server worker deployment compute provider executes a caller-supplied command on the Worker Service host

Temporal Server compiles a Worker Controller Instance module into its Worker Service, and that module registers a compute provider named subprocess whose function is to launch a worker by running a command on the machine hosting the Worker Service. The program name and the argument vector that...

CVE-2026-89139 Temporal Server worker deployment compute provider executes a caller-supplied command on the Worker Service host

Temporal Server compiles a Worker Controller Instance module into its Worker Service, and that module registers a compute provider named subprocess whose function is to launch a worker by running a command on the machine hosting the Worker Service. The program name and the argument vector that...

CVE-2026-89139

Temporal Server versions 1.31.0 through

CVE-2026-89139 Temporal Server worker deployment compute provider executes a caller-supplied command on the Worker Service host

Temporal Server compiles a Worker Controller Instance module into its Worker Service, and that module registers a compute provider named subprocess whose function is to launch a worker by running a command on the machine hosting the Worker Service. The program name and the argument vector that...

EUVD-2026-83897

Temporal Server compiles a Worker Controller Instance module into its Worker Service, and that module registers a compute provider named subprocess whose function is to launch a worker by running a command on the machine hosting the Worker Service. The program name and the argument vector that...

EUVD-2026-83896

Temporal Server decided whether a Workflow completion callback was internal by reading a caller-supplied HTTP header. An authenticated caller holding only write permission in a single namespace could attach a completion callback whose URL host matched the configured callback address allowlist,...

CVE-2026-87858

Temporal Server is vulnerable in its Workflow completion callback delivery logic (both HSM and CHASM implementations). A caller with only write permission in a single namespace can attach a callback with a non-empty source header, causing the History service to re-target the request to the intern...

CVE-2026-87858 Temporal Server completion callback source header can direct attacker-chosen requests to the internal frontend with administrator authorization

Temporal Server decided whether a Workflow completion callback was internal by reading a caller-supplied HTTP header. An authenticated caller holding only write permission in a single namespace could attach a completion callback whose URL host matched the configured callback address allowlist,...

CVE-2026-87858 Temporal Server completion callback source header can direct attacker-chosen requests to the internal frontend with administrator authorization

Temporal Server decided whether a Workflow completion callback was internal by reading a caller-supplied HTTP header. An authenticated caller holding only write permission in a single namespace could attach a completion callback whose URL host matched the configured callback address allowlist,...

CVE-2026-87858 Temporal Server completion callback source header can direct attacker-chosen requests to the internal frontend with administrator authorization

Temporal Server decided whether a Workflow completion callback was internal by reading a caller-supplied HTTP header. An authenticated caller holding only write permission in a single namespace could attach a completion callback whose URL host matched the configured callback address allowlist,...

CVE-2026-65651

temporalio/sqlparser accepts SQL with deeply nested unary expressions and returns a correspondingly deep abstract syntax tree without enforcing a nesting limit . The library's String and Walk operations traverse that tree recursively, causing a runtime-fatal Go stack overflow that terminates the ...

CVE-2026-65651 temporalio/sqlparser deeply nested unary expressions can cause a fatal stack overflow during AST traversal

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...

EUVD-2026-83891

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...

CVE-2026-16652 Temporal Server Schedule exclusion search can cause excessive CPU consumption

Temporal Server did not bound the work performed while searching for a Schedule's next action time. An authenticated caller with namespace write permission could create or update a Schedule that combines a fine-grained cadence with an exclusion calendar that rejects every candidate time, causing...