CVE-2025-66411 Coder logged sensitive objects unsanitized
Attackers with local or log access can read sensitive workspace agent manifests due to unsanitized logging in Coder.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-66411?
CVE-2025-66411 is a high-severity vulnerability in coder, published on 3 Dec 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Coder allows organizations to provision remote development environments via Terraform. Prior to 2.26.5, 2.27.7, and 2.28.4, Workspace Agent manifests containing sensitive values were logged in plaintext unsanitized. An attacker with limited local access to the Coder Workspace (VM, K8s Pod etc.) or a third-party system (SIEM, logging stack) could access those logs. This vulnerability is fixed in 2.26.5, 2.27.7, and 2.28.4.
Weakness: CWE-532
Which versions are affected by CVE-2025-66411?
8 open source packages ship an affected version, including github.com/coder/coder/v2 and github.com/coder/coder. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/coder/coder/v2 Go | All versions | 2.26.5, 2.27.7, 2.28.4 |
github.com/coder/coder/v2 Go | All versions | 2.26.5 |
github.com/coder/coder/v2 Go | All versions | 2.26.5 |
github.com/coder/coder/v2 Go | From 2.27.0 | 2.27.7 |
github.com/coder/coder/v2 Go | From 2.27.0 | 2.27.7 |
github.com/coder/coder/v2 Go | From 2.28.0 | 2.28.4 |
2 more packages
github.com/coder/coder/v2 Go | From 2.28.0 | 2.28.4 |
github.com/coder/coder Go | All versions | None |
Products include Coder Coder.
How do I fix CVE-2025-66411?
Upgrade github.com/coder/coder/v2 to a fixed version for your release line: 2.26.5, 2.27.7 or 2.28.4.
Is CVE-2025-66411 being exploited?
There is no known exploitation of CVE-2025-66411 in the wild and no public exploit code.
Other vulnerabilities in coder
- CVE-2026-46354 Coder: PKCS#7 signature bypass in Azure instance identity allows unauthenticated agent token theft
- CVE-2026-55429 Coder's workspace app upsert allows cross-workspace agent rebinding via user-controlled app ID
- CVE-2026-55427 Coder vulnerable to SSH config injection via unsanitized server-supplied values in `coder config-ssh`
- CVE-2026-55428 Coder: Route hijacking through lack of validation of agent-supplied AllowedIPs in tailnet coordinator
- CVE-2024-27918 Coder's OIDC authentication allows email with partially matching domain to register
Sources
Also known as GHSA-jf75-p25m-pw74, GO-2025-4182.