# CVE-2018-1099: DNS Rebinding in etcd

Source: https://junglewise.ai/threats/cve-2018-1099-dns-rebinding-in-etcd  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-02-15  
License: CC BY 4.0 with a link back

CVE-2018-1099 · Severity: low · CVSS 3 · Published 2022-02-15

DNS Rebinding in etcd

Technologies: [go.etcd.io/etcd (Go)](https://junglewise.ai/threats/technologies/go-etcd-io-etcd). Vendors: [Go](https://junglewise.ai/threats/vendors/go).

## Quick answers

**Is CVE-2018-1099 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2018-1099 being exploited in the wild.

**How severe is CVE-2018-1099?** Low severity, with a CVSS score of 3, published 15 February 2022.

**Which products and versions are affected?** go.etcd.io/etcd (Go) SEMVER:introduced=0,fixed=3.4.0.

**Is there a fix for CVE-2018-1099?** Yes. go.etcd.io/etcd (Go): upgrade to 3.4.0 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected by CVE-2018-1099?** Check whether you run go.etcd.io/etcd (Go) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- go.etcd.io/etcd (Go): upgrade to 3.4.0 or later

  ```sh
  go get go.etcd.io/etcd@v3.4.0
  ```


## Affected products

- go.etcd.io/etcd (Go) SEMVER:introduced=0,fixed=3.4.0

## Identifiers

- CVE-2018-1099
- GHSA-wf43-55jj-vwq8

## Related threats

- [etcd RBAC authorization bypass in transaction operations](https://junglewise.ai/threats/cve-2026-44283-etcd-rbac-authorization-bypass-in-transaction-operations)
- [GO-2026-4808 - Nested etcd transactions bypass RBAC authorization checks in go.etcd.io/etcd](https://junglewise.ai/threats/cve-2026-33343-etcd-nested-etcd-transactions-bypass-rbac-authorization-checks)
- [GO-2026-4806 - Authorization bypasses in multiple APIs in go.etcd.io/etcd](https://junglewise.ai/threats/cve-2026-33413-etcd-authorization-bypasses-in-multiple-apis)
- [GO-2024-2528 - Etcd Gateway TLS endpoint validation only confirms TCP reachability in go.etcd.io/etcd](https://junglewise.ai/threats/go-2024-2528-etcd-gateway-tls-endpoint-validation-only-confirms-tcp-0788e9d2)
- [GO-2024-2527 - Insecure ciphers are allowed by default in go.etcd.io/etcd](https://junglewise.ai/threats/go-2024-2527-insecure-ciphers-are-allowed-by-default-in-go-etcd-io-etcd-2afa88c8)