CVE-2025-8396
Medium
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.
SeverityMedium
CVSS6.9
Exploit probability—
ProductGo.temporal.io/server
PublishedSep 15, 2025
First seenSep 15, 2025
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- go.temporal.io/server1.26.3, 1.27.3, 1.28.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| go.temporal.io/serverGo | v < 1.26.3, 1.27.0-126.0 ≤ v < 1.27.3, 1.28.0-129.0 ≤ v < 1.28.1 | 1.26.3, 1.27.3, 1.28.1 |
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