Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2025-14987

19
FAUCET Score

CVE-2025-14987 is a medium-severity vulnerability affecting Temporal Server versions through 1.29.1, where the default setting "system.enableCrossNamespaceCommands" allows a worker authorized for one namespace to execute workflow task commands (e.g., StartChildWorkflowExecution) in a different, unauthorized namespace. This bypasses gRPC boundary authorization, potentially leading to unauthorized creation, signaling, or cancellation of workflows. The CVSS score is 5.3 MEDIUM, indicating low attack complexity and potential for limited impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0, <= 1.27.3CPE match
cpe:2.3:a:temporal:temporal:*:*:*:*:*:*:*:*
>= 0, <= 1.28.1CPE match
cpe:2.3:a:temporal:temporal:*:*:*:*:*:*:*:*
>= 0, <= 1.29.1CPE match
cpe:2.3:a:temporal:temporal:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 4.0

5.3MEDIUM

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/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

Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
LOW
SS Confidentiality
LOW
SS Integrity
LOW
SS Availability
LOW
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.36%
Probability of exploitation in next 30 days
EPSS Percentile
28.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0036 is in the 38th percentile among its peer group of 21,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

gopatch availablevia ghsa
Product: go.temporal.io/serverFixed in: 1.27.4
gopatch availablevia ghsa
Product: go.temporal.io/serverFixed in: 1.28.2
gopatch availablevia ghsa
Product: go.temporal.io/serverFixed in: 1.29.2
gopatch availablevia ghsa
Product: go.temporal.io/serverFixed in: 1.29.0-135.0.0.20251218190115-b292a32bacdf

Vendor Advisories (1)

goGHSA-hmhp-gh8m-c8xpmedium

Temporal has an Incorrect Authorization vulnerability

Dec 30, 2025

References

github.com / temporalio/temporal/releases/tag/v1.27.4
github.com / temporalio/temporal/releases/tag/v1.28.2
github.com / temporalio/temporal/releases/tag/v1.29.2