CVE-2025-8396 is a denial-of-service vulnerability in the Temporal server, affecting all versions prior to 1.26.3, 1.27.3, and 1.28.1. It stems from insufficient bounds checking on the authorization header, leading to excessive memory allocation. Rated as MEDIUM severity (CVSS 6.9), this vulnerability can be exploited remotely with low attack complexity, potentially causing a denial of service. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
| Temporal | OSS Server | >= 0, < 1.26.3, >= 1.27.0, < 1.27.3, >= 1.28.0, < 1.28.1CNA affecteddefault unaffected |
CVSS version used by this source: 4.0
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/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:N/AU:Y/R:X/V:X/RE:X/U:X
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The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.