Detections
Analytics

SCA: security update for go.temporal.io/server (GHSA-hmhp-gh8m-c8xp)

medium Tenable Cloud Security Plugin ID 436547

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. This issue
 affects Temporal: through 1.29.1. Fixed in 1.27.4, 1.28.2, 1.29.2. (CVE-2025-14987)

See Also

https://github.com/advisories/GHSA-hmhp-gh8m-c8xp

Plugin Details

Severity: Medium

ID: 436547

Version: Revision 1.6

Type: Local

Family: SCA Checks

Published: 1/2/2026

Updated: 7/20/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.59

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:P/A:N

CVSS Score Source: CVE-2025-14987

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 5.3

Threat Score: 1.3

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 12/30/2025

Vulnerability Publication Date: 12/30/2025

Reference Information

CVE: CVE-2025-14987

cwe: CWE-863