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vuln-cve/data/2026/55xxx/CVE-2026-55437.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-55437",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-06-16T21:59:57.017Z",
"datePublished": "2026-07-08T00:29:18.268Z",
"dateUpdated": "2026-07-08T14:00:43.204Z"
},
"containers": {
"cna": {
"title": "Coder vulnerable to stored HTML injection via workspace agent logs in AgentLogLine component",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"lang": "en",
"description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/coder/coder/security/advisories/GHSA-7qw2-f75v-62f7",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/coder/coder/security/advisories/GHSA-7qw2-f75v-62f7"
},
{
"name": "https://github.com/coder/coder/pull/25808",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/coder/coder/pull/25808"
},
{
"name": "https://github.com/coder/coder/releases/tag/v2.29.17",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/coder/coder/releases/tag/v2.29.17"
},
{
"name": "https://github.com/coder/coder/releases/tag/v2.32.7",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/coder/coder/releases/tag/v2.32.7"
},
{
"name": "https://github.com/coder/coder/releases/tag/v2.33.8",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/coder/coder/releases/tag/v2.33.8"
},
{
"name": "https://github.com/coder/coder/releases/tag/v2.34.2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/coder/coder/releases/tag/v2.34.2"
}
],
"affected": [
{
"vendor": "coder",
"product": "coder",
"versions": [
{
"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",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-07-08T00:29:18.268Z"
},
"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."
}
],
"source": {
"advisory": "GHSA-7qw2-f75v-62f7",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-07-08T14:00:28.554141Z",
"id": "CVE-2026-55437",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-07-08T14:00:43.204Z"
}
}
]
}
}