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vuln-cve/data/2026/42xxx/CVE-2026-42603.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-42603",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-29T00:31:15.725Z",
"datePublished": "2026-05-11T16:11:55.297Z",
"dateUpdated": "2026-05-11T17:27:55.699Z"
},
"containers": {
"cna": {
"title": "OWASP BLT: pre-commit-fix.yaml executes untrusted fork code via pull_request_target",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-94",
"lang": "en",
"description": "CWE-94: Improper Control of Generation of Code ('Code Injection')",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-95",
"lang": "en",
"description": "CWE-95: Improper Neutralization of Directives in Dynamically Evaluated Code ('Eval Injection')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/OWASP-BLT/BLT/security/advisories/GHSA-cgvj-qg2h-cqfh",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/OWASP-BLT/BLT/security/advisories/GHSA-cgvj-qg2h-cqfh"
}
],
"affected": [
{
"vendor": "OWASP-BLT",
"product": "BLT",
"versions": [
{
"version": "< 2.1.2",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-05-11T16:11:55.297Z"
},
"descriptions": [
{
"lang": "en",
"value": "OWASP BLT is a QA testing and vulnerability disclosure platform that encompasses websites, apps, git repositories, and more. Prior to 2.1.2, .github/workflows/pre-commit-fix.yaml uses pull_request_target (privileged trigger) but checks out and executes code directly from the attacker's fork, enabling RCE with write permissions. This vulnerability is fixed in 2.1.2."
}
],
"source": {
"advisory": "GHSA-cgvj-qg2h-cqfh",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/OWASP-BLT/BLT/security/advisories/GHSA-cgvj-qg2h-cqfh",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-05-11T17:27:52.116751Z",
"id": "CVE-2026-42603",
"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": "2026-05-11T17:27:55.699Z"
}
}
]
}
}