139 lines
6.9 KiB
JSON
139 lines
6.9 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-27794",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-02-24T02:31:33.265Z",
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"datePublished": "2026-02-25T16:53:47.176Z",
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"dateUpdated": "2026-02-25T21:00:24.430Z"
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},
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"containers": {
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"cna": {
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"title": "LangGraph: BaseCache Deserialization of Untrusted Data may lead to Remote Code Execution",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-502",
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"lang": "en",
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"description": "CWE-502: Deserialization of Untrusted Data",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "HIGH",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 6.6,
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"baseSeverity": "MEDIUM",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "HIGH",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/langchain-ai/langgraph/security/advisories/GHSA-mhr3-j7m5-c7c9",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/langchain-ai/langgraph/security/advisories/GHSA-mhr3-j7m5-c7c9"
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},
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{
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"name": "https://github.com/langchain-ai/langgraph/pull/6677",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/langchain-ai/langgraph/pull/6677"
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},
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{
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"name": "https://github.com/langchain-ai/langgraph/commit/f91d79d0c86932ded6e3b9f195d5a0bbd5aef99c",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/langchain-ai/langgraph/commit/f91d79d0c86932ded6e3b9f195d5a0bbd5aef99c"
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},
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{
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"name": "https://github.com/langchain-ai/langgraph/releases/tag/checkpoint%3D%3D4.0.0",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/langchain-ai/langgraph/releases/tag/checkpoint%3D%3D4.0.0"
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}
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],
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"affected": [
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{
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"vendor": "langchain-ai",
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"product": "langgraph-checkpoint",
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"versions": [
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{
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"version": "< 4.0.0",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-02-25T16:53:47.176Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "LangGraph Checkpoint defines the base interface for LangGraph checkpointers. Prior to version 4.0.0, a Remote Code Execution vulnerability exists in LangGraph's caching layer when applications enable cache backends that inherit from `BaseCache` and opt nodes into caching via `CachePolicy`. Prior to `langgraph-checkpoint` 4.0.0, `BaseCache` defaults to `JsonPlusSerializer(pickle_fallback=True)`. When msgpack serialization fails, cached values can be deserialized via `pickle.loads(...)`. Caching is not enabled by default. Applications are affected only when the application explicitly enables a cache backend (for example by passing `cache=...` to `StateGraph.compile(...)` or otherwise configuring a `BaseCache` implementation), one or more nodes opt into caching via `CachePolicy`, and the attacker can write to the cache backend (for example a network-accessible Redis instance with weak/no auth, shared cache infrastructure reachable by other tenants/services, or a writable SQLite cache file). An attacker must be able to write attacker-controlled bytes into the cache backend such that the LangGraph process later reads and deserializes them. This typically requires write access to a networked cache (for example a network-accessible Redis instance with weak/no auth or shared cache infrastructure reachable by other tenants/services) or write access to local cache storage (for example a writable SQLite cache file via permissive file permissions or a shared writable volume). Because exploitation requires write access to the cache storage layer, this is a post-compromise / post-access escalation vector. LangGraph Checkpoint 4.0.0 patches the issue."
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}
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],
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"source": {
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"advisory": "GHSA-mhr3-j7m5-c7c9",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-02-25T21:00:12.555344Z",
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"id": "CVE-2026-27794",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-02-25T21:00:24.430Z"
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}
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}
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]
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}
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} |