CVE-2026-55437

{"id": "CVE-2026-55437", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-55437", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-07-08T14:00:28.554141Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}, "impactScore": 2.7, "exploitabilityScore": 2.3}]}, "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": "2026-07-08T01:16:28.020", "references": [{"url": "https://github.com/coder/coder/pull/25808", "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-7qw2-f75v-62f7", "tags": ["Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-79"}]}], "descriptions": [{"lang": "en", "value": "Coder allows organizations to provision remote development environments via Terraform. Prior to versions 2.29.17, 2.32.7, 2.33.8, and 2.34.2, the `AgentLogLine` dashboard component instantiated `ansi-to-html` without `escapeXML: true` and inserted the result via `dangerouslySetInnerHTML` so HTML embedded in workspace agent log lines was rendered as live markup. Server-side sanitization did not neutralize HTML metacharacters. Exploitation requires a victim to view attacker-controlled agent logs in the dashboard. The fix in versions 2.29.17, 2.32.7, 2.33.8, and 2.34.2 enables `escapeXML: true` so HTML metacharacters are escaped before DOM insertion. No known workarounds are available."}], "lastModified": "2026-07-08T19:38:48.677", "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"}