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vuln-cve/data/2026/77xxx/CVE-2026-77602.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-77602",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-08-20T20:48:20.507Z",
"datePublished": "2026-09-23T18:56:16.967Z",
"dateUpdated": "2026-09-29T02:09:19.382Z"
},
"containers": {
"cna": {
"title": "OpenC3 COSMOS: Authenticated remote code execution via the user-writable config overlay (table definitions, cmd/tlm definitions, and script suites)",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-94",
"lang": "en",
"description": "CWE-94: Improper Control of Generation of Code ('Code Injection')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.9,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/OpenC3/cosmos/security/advisories/GHSA-jjq7-m736-w977",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/OpenC3/cosmos/security/advisories/GHSA-jjq7-m736-w977"
},
{
"name": "https://github.com/OpenC3/cosmos/pull/3488",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/OpenC3/cosmos/pull/3488"
},
{
"name": "https://github.com/OpenC3/cosmos/commit/71943352a28128ef3e7e894319d97a656b5cd4f2",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/OpenC3/cosmos/commit/71943352a28128ef3e7e894319d97a656b5cd4f2"
},
{
"name": "https://github.com/OpenC3/cosmos/commit/7a1538a4626f82c0d1540fcaa27ffdcbbd71ff81",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/OpenC3/cosmos/commit/7a1538a4626f82c0d1540fcaa27ffdcbbd71ff81"
}
],
"affected": [
{
"vendor": "OpenC3",
"product": "cosmos",
"versions": [
{
"version": ">= 5.1.0, < 7.3.0",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-09-23T18:56:16.967Z"
},
"descriptions": [
{
"lang": "en",
"value": "OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.1.0 until 7.3.0, authenticated non-administrator users can write content under targets_modified/ that is later executed by multiple configuration paths below the intended code-execution privilege tier. Table and command or telemetry definitions are processed through ConfigParser, PacketConfig, GENERIC_READ_CONVERSION, or GENERIC_WRITE_CONVERSION, allowing ERB rendering or Ruby and Python evaluation, while openc3-cosmos-script-runner-api/scripts/run_suite_analysis.rb executes suite procedure files through require. Storage uploads, screen saves, and script creation can place content in the overlay, and triggering table processing, a cmd/tlm reload, or suite analysis executes the content in cmd-tlm-api, decom microservices, or Script Runner with access to internal credentials and data. This issue is fixed in version 7.3.0."
}
],
"source": {
"advisory": "GHSA-jjq7-m736-w977",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/OpenC3/cosmos/security/advisories/GHSA-jjq7-m736-w977",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-09-29T02:08:58.163563Z",
"id": "CVE-2026-77602",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-09-29T02:09:19.382Z"
}
}
]
}
}