CVE-2026-55432
Fixed in a distro release EPSS <1%CVSS 5.4
Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2, the `CreateSubAgent` RPC did not validate a requested app sharing level against the template's `MaxPortSharingLevel` before persisting workspace apps, letting a workspace owner exceed the administrator's configured maximum. Exploitation requires the ability to register sub-agent apps in a workspace the attacker controls. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2clamps the sub-agent app sharing level to the template's `MaxPortSharingLevel`. As a workaround, disable wildcard app hostnames (`CODER_WILDCARD_ACCESS_URL`) to block subdomain-based app routing.
Products: coder
Fixed upstream
| Ecosystem | Package | Fixed in |
|---|---|---|
| Go | github.com/coder/coder | no fix |
| Go | github.com/coder/coder/v2 | 2.34.2 |
| Go | github.com/coder/coder/v2 | 2.33.8 |
| Go | github.com/coder/coder/v2 | 2.32.7 |
| Go | github.com/coder/coder/v2 | 2.29.17 |
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| openSUSE:Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 |