cve.bz

CVE-2025-8396

6.9 mediumEPSS 0.4%

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.

Severity

CVSS 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
EPSS
0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
CWE
CWE-770
Published
Modified
Record from
the NVD, synced

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-p768-c3pr-6459Gogo.temporal.io/server<1.26.31.26.3
GHSA-p768-c3pr-6459Gogo.temporal.io/server>=1.27.0-126.0 <1.27.31.27.3
GHSA-p768-c3pr-6459Gogo.temporal.io/server>=1.28.0-129.0 <1.28.11.28.1
GO-2025-3953Gogo.temporal.io/server<1.26.3
>=1.27.0-126.0 <1.27.3
>=1.28.0-129.0 <1.28.1		1.26.3, 1.27.3, 1.28.1

References

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