CVE-2020-8664 json
CNCF Envoy through 1.13.0 has incorrect Access Control when using SDS with Combined Validation Context.
published 6y ago modified last mo. also BIT-envoy-2020-8664 , EUVD-2020-29512 , GHSA-3x9m-pgmg-xpx8
- cvss
- 5.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.3%
- EPSS 1.3% chance of exploitation in 30 days, percentile 70%
- public exploits
- 0
- none known
Summary
CNCF Envoy through 1.13.0 has incorrect Access Control when using SDS with Combined Validation Context. Using the same secret (e.g. trusted CA) across many resources together with the combined validation context could lead to the “static” part of the validation context to be not applied, even though it was visible in the active config dump.
Patch / fix
- servicemesh-proxy service mesh 1.0 1.0.9-2.el8
red hat advisories RHSA-2020:0734
Is CVE-2020-8664 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerVendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2020-8664 updated cvss 7.3
envoy: Incorrect Access Control when using SDS with Combined Validation Context
-
Red Hat OpenShift Service Mesh 1.0 servicemesh-proxy 1.0.9-2.el8fixed: vendor fix RHSA-2020:0734
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
1.30% chance of exploitation in the next 30 days, higher than 70% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
| OSV | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| bitnami | envoy | <=1.13.0 |
no fix listed |
Classification
- Weakness
-
- CWE-287 Improper Authentication
References
-
access.redhat.com
/errata/RHSA-2020:0734
vendor-advisory, third-party-advisory, advisory
-
envoyproxy.io
/docs/envoy/v1.13.1/intro/version_history
release-notes, third-party-advisory, advisory
-
github.com
/envoyproxy/envoy/security/advisories/GHSA-3x9m-pgmg-xpx8
third-party-advisory, advisory
-
nvd.nist.gov
/vuln/detail/CVE-2020-8664
web
Sources
- CVE List CVE-2020-8664
- NVD CVE-2020-8664
- OSV BIT-envoy-2020-8664
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.