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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-55432

27
FAUCET Score

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.

First published: Jul 8, 2026Last modified: Jul 8, 2026

Impacted Technologies

VendorProductVersion(s)CPE
< 2.29.17CPE matchmatch criteria
cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*
>= 2.30.0, < 2.32.7CPE matchmatch criteria
cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*
>= 2.33.0, < 2.33.8CPE matchmatch criteria
cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*
>= 2.34.0, < 2.34.2CPE matchmatch criteria
cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
8.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 4th percentile among its peer group of 21,974 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (5)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/coder/coder/v2Fixed in: 2.34.2
gopatch availablevia ghsa
Product: github.com/coder/coder/v2Fixed in: 2.33.8
gopatch availablevia ghsa
Product: github.com/coder/coder/v2Fixed in: 2.32.7
gopatch availablevia ghsa
Product: github.com/coder/coder/v2Fixed in: 2.29.17

Vendor Advisories (1)

goGHSA-x9qq-2qh5-8rxfmedium

Coder's sub-agent app registration bypasses template port-sharing policy enforcement

Jul 6, 2026

References

github.com / coder/coder/pull/26061
Issue TrackingPatch
github.com / coder/coder/releases/tag/v2.29.17
Release Notes
github.com / coder/coder/releases/tag/v2.32.7
Release Notes
github.com / coder/coder/releases/tag/v2.33.8
Release Notes
github.com / coder/coder/releases/tag/v2.34.2
Release Notes
github.com / coder/coder/security/advisories/GHSA-x9qq-2qh5-8rxf
PatchVendor Advisory