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-2025-1243

12
FAUCET Score

CVE-2025-1243 describes a vulnerability in the Temporal api-go library, specifically versions prior to 1.44.1, where the 'update response' information from UpdateWorkflowExecution APIs was not sent to Data Converter when using the proxy package in a gRPC proxy. This omission meant that Data Converter transformations, such as encryption, were not applied to this specific field, potentially exposing sensitive information. The vulnerability has a low CVSS score of 2.0, indicating a local attack vector with low complexity and limited impact on confidentiality. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
Temporal Technologies, Inc.Api-Go Library
>= 0, < 1.44.1CNA affecteddefault unaffected

CVSS Data

CVSS version used by this source: 4.0

2.0LOW

CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/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
LOCAL
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
VS Confidentiality
LOW
VS Integrity
NONE
VS Availability
NONE
SS Confidentiality
LOW
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
NOT_DEFINED
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.09%
Probability of exploitation in next 30 days
EPSS Percentile
0.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0009 is in the 5th percentile among its peer group of 1,509 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 (1)

gopatch availablevia ghsa
Product: go.temporal.io/apiFixed in: 1.44.1

Vendor Advisories (1)

goGHSA-q9w6-cwj4-gf4plow

Unencrypted transmission in Temporal api-go library

Feb 12, 2025

References

github.com / temporalio/api-go/releases/tag/v1.44.1
temporal.io / blog/announcing-a-new-operation-workflow-update