CVE-2026-55433

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 devcontainer recreate endpoint relied on route middleware that checked only `ActionRead` on the workspace and, unlike the sibling delete endpoint, performed no `ActionUpdate` check before triggering the destructive rebuild. Exploitation requires an existing low-privilege role with access to the target workspace. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 adds an explicit `ActionUpdate` authorization check before the agent is dialed like the delete endpoint. No known workarounds are available.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/coder/coder/pull/25812	Issue Tracking Patch
https://github.com/coder/coder/releases/tag/v2.29.17	Release Notes
https://github.com/coder/coder/releases/tag/v2.32.7	Release Notes
https://github.com/coder/coder/releases/tag/v2.33.8	Release Notes
https://github.com/coder/coder/releases/tag/v2.34.2	Release Notes
https://github.com/coder/coder/security/advisories/GHSA-jqj2-x4c5-jfxm	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:coder:coder::::::go::*
	cpe:2.3:a:coder:coder::::::go::*
	cpe:2.3:a:coder:coder::::::go::*
	cpe:2.3:a:coder:coder::::::go::*

History

No history.

Information

Published : 2026-07-08 01:16

Updated : 2026-07-08 19:39

NVD link : CVE-2026-55433

Mitre link : CVE-2026-55433

CVE.ORG link : CVE-2026-55433

JSON object : View

Products Affected

coder

coder

CWE

CWE-862

Missing Authorization

{"id": "CVE-2026-55433", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55433", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-08T13:01:36.512667Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "LOW", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 2.5, "exploitabilityScore": 2.8}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "coder", "product": "coder", "versions": [{"status": "affected", "version": ">= 2.34.0, < 2.34.2"}, {"status": "affected", "version": ">= 2.33.0, < 2.33.8"}, {"status": "affected", "version": ">= 2.30.0, < 2.32.7"}, {"status": "affected", "version": "< 2.29.17"}]}]}], "published": "2026-07-08T01:16:27.760", "references": [{"url": "https://github.com/coder/coder/pull/25812", "tags": ["Issue Tracking", "Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/coder/coder/releases/tag/v2.29.17", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/coder/coder/releases/tag/v2.32.7", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/coder/coder/releases/tag/v2.33.8", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/coder/coder/releases/tag/v2.34.2", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/coder/coder/security/advisories/GHSA-jqj2-x4c5-jfxm", "tags": ["Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-862"}]}], "descriptions": [{"lang": "en", "value": "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 devcontainer recreate endpoint relied on route middleware that checked only `ActionRead` on the workspace and, unlike the sibling delete endpoint, performed no `ActionUpdate` check before triggering the destructive rebuild. Exploitation requires an existing low-privilege role with access to the target workspace. The fix in versions 2.29.7, 2.32.7, 2.33.8, and 2.34.2 adds an explicit `ActionUpdate` authorization check before the agent is dialed like the delete endpoint. No known workarounds are available."}], "lastModified": "2026-07-08T19:39:45.713", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*", "vulnerable": true, "matchCriteriaId": "F97FAF48-192E-4814-82A5-085C44F1D261", "versionEndExcluding": "2.29.17"}, {"criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*", "vulnerable": true, "matchCriteriaId": "7ABD4A9B-6AE8-47D8-A1B7-91E42EE0481B", "versionEndExcluding": "2.32.7", "versionStartIncluding": "2.30.0"}, {"criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*", "vulnerable": true, "matchCriteriaId": "F759EEF3-6EAE-475B-85F8-38E7D7B47438", "versionEndExcluding": "2.33.8", "versionStartIncluding": "2.33.0"}, {"criteria": "cpe:2.3:a:coder:coder:*:*:*:*:*:go:*:*", "vulnerable": true, "matchCriteriaId": "397A02BF-6CF6-40B1-B792-D7CB9D229050", "versionEndExcluding": "2.34.2", "versionStartIncluding": "2.34.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}