Envoy is a high-performance edge/middle/service proxy. External authentication can be bypassed by downstream connections. Downstream clients can force invalid gRPC requests to be sent to ext_authz, circumventing ext_authz checks when failure_mode_allow is set to true. This issue has been addressed in released 1.29.1, 1.28.1, 1.27.3, and 1.26.7. Users are advised to upgrade. There are no known workarounds for this vulnerability.
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No Fix Known
No patch has been released yet. Apply workarounds or mitigations where available.
| Vendor | Product | Versions | Fixed In |
|---|---|---|---|
| envoyproxy | envoy | 1.26.0 - 1.26.7 | - |
| envoyproxy | envoy | 1.27.0 - 1.27.3 | - |
| envoyproxy | envoy | 1.28.0 - 1.28.1 |
Published
CVE disclosed publicly
Last Modified
Most recent update
Indexed to CVEInsight
Added to this platform
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
4
Affected Products
4
References
envoyproxy / envoy
| - |
| envoyproxy | envoy | 1.29.0 - 1.29.1 | - |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Exploitability
Impact