GHSA-j86v-2vjr-fg8f
Etcd Gateway TLS endpoint validation only confirms TCP reachability
Vulnerability type
Cryptography
Workarounds
Refer to the gateway documentation. The vulnerability was spotted due to unclear documentation of how the gateway handles endpoints validation.
Detail
Secure endpoint validation is performed by the etcd gateway start command when the --discovery-srv flag is enabled. However, as currently implemented, it only validates TCP reachability, effectively allowing connections to an endpoint that doesn't accept TLS connections through the HTTPS URL. The auditors has noted that appropriate documentation of this validation functionality plus deprecation of this misleading functionality is an acceptable path forward.
References
Find out more on this vulnerability in the security audit report
For more information
If you have any questions or comments about this advisory:
- Contact the etcd security committee
What each source reports
GitHub AdvisoriesNo score
Etcd Gateway TLS endpoint validation only confirms TCP reachability
Vulnerability type
Cryptography
Workarounds
Refer to the gateway documentation. The vulnerability was spotted due to unclear documentation of how the gateway handles endpoints validation.
Detail
Secure endpoint validation is performed by the etcd gateway start command when the --discovery-srv flag is enabled. However, as currently implemented, it only validates TCP reachability, effectively allowing connections to an endpoint that doesn't accept TLS connections through the HTTPS URL. The auditors has noted that appropriate documentation of this validation functionality plus deprecation of this misleading functionality is an acceptable path forward.
References
Find out more on this vulnerability in the security audit report
For more information
If you have any questions or comments about this advisory:
- Contact the etcd security committee
- Record
GHSA-j86v-2vjr-fg8f- Updated
- 2026-11-02
OSVNo score
Etcd Gateway TLS endpoint validation only confirms TCP reachability
Vulnerability type
Cryptography
Workarounds
Refer to the gateway documentation. The vulnerability was spotted due to unclear documentation of how the gateway handles endpoints validation.
Detail
Secure endpoint validation is performed by the etcd gateway start command when the --discovery-srv flag is enabled. However, as currently implemented, it only validates TCP reachability, effectively allowing connections to an endpoint that doesn't accept TLS connections through the HTTPS URL. The auditors has noted that appropriate documentation of this validation functionality plus deprecation of this misleading functionality is an acceptable path forward.
References
Find out more on this vulnerability in the security audit report
For more information
If you have any questions or comments about this advisory:
- Contact the etcd security committee
- Record
GHSA-j86v-2vjr-fg8f- Updated
- 2026-11-02
OSVGO-2024-2528No score
Etcd Gateway TLS endpoint validation only confirms TCP reachability in go.etcd.io/etcd
Etcd Gateway TLS endpoint validation only confirms TCP reachability in go.etcd.io/etcd
- Record
GO-2024-2528- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
go.etcd.io/etcd/v3Go | 3.4.0-rc.0 to 3.4.9 | 3.4.10 |
go.etcd.io/etcd/v3Go | before 3.3.23 | 3.3.23 |
go.etcd.io/etcd/v3Go | 3.4.0-rc.0 up to 3.4.10 | 3.4.10 |
go.etcd.io/etcdGo | All versions | None known |
go.etcd.io/etcd/v3Go | All versions | None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | GitHub Advisories, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
GHSA-j86v-2vjr-fg8f is a vulnerability with no CVSS score yet in go.etcd.io/etcd/v3, published February 3, 2024. No source lists public exploit code. Fixed in go.etcd.io/etcd/v3 3.4.10.