CVE-2025-8396

State: Published
Severity: 6.9 Medium
Published: Sep 15, 2025
Updated: Sep 15, 2025
Reserved: Jul 30, 2025

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/S:N/AU:Y	Temporal

Weaknesses

CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

Product	Versions
OSS ServerTemporal	before 1.26.3Affected 1.27.0 to before 1.27.3Affected 1.28.0 to before 1.28.1Affected

References

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