{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-53670", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-09T20:50:36.877Z", "datePublished": "2026-09-02T17:54:43.900Z", "dateUpdated": "2026-09-02T18:08:29.456Z"}, "containers": {"cna": {"title": "PREVAIL: Non-singleton typeset in add() skips offset update, allowing OOB access to pass eBPF verification", "problemTypes": [{"descriptions": [{"cweId": "CWE-682", "lang": "en", "description": "CWE-682: Incorrect Calculation", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.3, "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/vbpf/prevail/security/advisories/GHSA-2qc8-qh94-66rc", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/vbpf/prevail/security/advisories/GHSA-2qc8-qh94-66rc"}, {"name": "https://github.com/vbpf/prevail/commit/2b209bc4e3d612ff9aca87125e67c0ff84477e61", "tags": ["x_refsource_MISC"], "url": "https://github.com/vbpf/prevail/commit/2b209bc4e3d612ff9aca87125e67c0ff84477e61"}, {"name": "https://github.com/vbpf/prevail/releases/tag/v0.2.4", "tags": ["x_refsource_MISC"], "url": "https://github.com/vbpf/prevail/releases/tag/v0.2.4"}], "affected": [{"vendor": "vbpf", "product": "prevail", "versions": [{"version": "< 0.2.4", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-02T17:54:43.900Z"}, "descriptions": [{"lang": "en", "value": "PREVAIL is a Polynomial-Runtime EBPF Verifier using an Abstract Interpretation Layer. Prior to version 0.2.4, in the Prevail eBPF verifier, EbpfTransformer::add() silently skips offset-variable updates when the destination register carries a non-singleton typeset (two or more simultaneously possible pointer types). Subsequent bounds checks use the stale offset and accept out-of-bounds memory accesses, so a crafted BPF program passes verification even though it would corrupt memory at runtime. This issue has been patched in version 0.2.4."}], "source": {"advisory": "GHSA-2qc8-qh94-66rc", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/vbpf/prevail/security/advisories/GHSA-2qc8-qh94-66rc", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-02T18:08:09.094325Z", "id": "CVE-2026-53670", "options": [{"Exploitation": "poc"}, {"Automatable": "yes"}, {"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": "2026-09-02T18:08:29.456Z"}}]}}

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{}

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