CVE-2026-6993
go-kratos http.DefaultServeMux Fallback server.go NewServer confused deputy
MEDIUM 5.5EPSS 0.5%
A security flaw has been discovered in go-kratos kratos up to 2.9.2. This impacts the function NewServer of the file transport/http/server.go of the component http.DefaultServeMux Fallback Handler. The manipulation results in unintended intermediary. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The patch is identified as 0284a5bcf92b5a7ee015300ce3051baf7ae4718d. Applying a patch is advised to resolve this issue.
- Affected
- go-kratos · kratos
- CVSS v4.0 VULDB
- 5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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:X/AU:X/R:X/V:X/RE:X/U:X - CVSS v4.0 GitHub
- 5.5 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P - CVSS v3.1 VULDB
- 5.3 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - CVSS v2.0 VULDB
- 5.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N - EPSS
- 0.54% chance of exploitation in the next 30 days, 44th percentile
- Published
- 2026-04-25
- Updated
- 2026-04-27
Proof-of-concept exploits (1)
- go-kratos/kratos/issues/381025971★ · 2026-09-16