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vuln-cve/data/2026/28xxx/CVE-2026-28277.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-28277",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-02-26T01:52:58.734Z",
"datePublished": "2026-03-05T19:10:36.865Z",
"dateUpdated": "2026-03-06T18:04:29.687Z"
},
"containers": {
"cna": {
"title": "LangGraph: Unsafe msgpack deserialization in LangGraph checkpoint loading",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-502",
"lang": "en",
"description": "CWE-502: Deserialization of Untrusted Data",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "ADJACENT_NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 6.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/langchain-ai/langgraph/security/advisories/GHSA-g48c-2wqr-h844",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/langchain-ai/langgraph/security/advisories/GHSA-g48c-2wqr-h844"
}
],
"affected": [
{
"vendor": "langchain-ai",
"product": "langgraph",
"versions": [
{
"version": "<= 1.0.9",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-03-05T19:10:36.865Z"
},
"descriptions": [
{
"lang": "en",
"value": "LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In version 1.0.9 and prior, LangGraph checkpointers can load msgpack-encoded checkpoints that reconstruct Python objects during deserialization. If an attacker can modify checkpoint data in the backing store (for example, after a database compromise or other privileged write access to the persistence layer), they can potentially supply a crafted payload that triggers unsafe object reconstruction when the checkpoint is loaded. No known patch is public."
}
],
"source": {
"advisory": "GHSA-g48c-2wqr-h844",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-03-06T18:04:22.963963Z",
"id": "CVE-2026-28277",
"options": [
{
"Exploitation": "none"
},
{
"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": "2026-03-06T18:04:29.687Z"
}
}
]
}
}