CVE-2025-8396
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-15

Last updated on: 2025-09-15

Assigner: Temporal Technologies Inc.

Description
Insufficiently specific bounds checking on authorization header could lead to denial of service in the Temporal server on all platforms due to excessive memory allocation.This issue affects all platforms and versions of OSS Server prior to 1.26.3, 1.27.3, and 1.28.1 (i.e., fixed in 1.26.3, 1.27.3, and 1.28.1 and later). Temporal Cloud services are not impacted.
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Meta Information
Published
2025-09-15
Last Modified
2025-09-15
Generated
2026-06-16
AI Q&A
2025-09-15
EPSS Evaluated
2026-06-15
NVD
CVE-2025-8396
EUVD
EUVD-2025-29200
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
temporal temporal *
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-770 The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
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Executive Summary

This vulnerability is caused by insufficiently specific bounds checking on the authorization header in the Temporal server. This flaw can lead to a denial of service (DoS) condition on all platforms by causing excessive memory allocation when processing the authorization header.

Impact Analysis

The vulnerability can impact you by causing a denial of service in the Temporal server, potentially making the service unavailable or unstable due to excessive memory usage triggered by malformed authorization headers.

Mitigation Strategies

To mitigate this vulnerability, you should upgrade your Temporal OSS Server to version 1.26.3, 1.27.3, 1.28.1 or later, as these versions contain fixes for the issue. Temporal Cloud services are not impacted, so if you use those, no action is needed. [2]

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