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01 Record

CVE-2026-48121

@langchain/langgraph-checkpoint-mongodb: NoSQL parameter injection in MongoDBSaver allows cross-tenant state access

MediumPUBLISHEDCNA: GitHub_M
CNA base score6.7 CVSS v3.xCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

02 Description

@langchain/langgraph-checkpoint-mongodb: NoSQL parameter injection in MongoDBSaver allows cross-tenant state access

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.35% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 28.9% of scored records. A rank, not a probability.
NVD base score
6.7 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
NVD analysis status
Awaiting Analysis. NVD last modified this record on 2026-10-24.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-08-04 16:49Z2 MO AGO
Last updated
2026-08-04 19:51Z2 MO AGO
Reserved
2026-05-20
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Medium (CVSS 6.7)
CNA CVSS vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Weaknesses
  • CWE-943Improper Neutralization of Special Elements in Data Query LogicClass
Data version
5.2
Document digest
a18d451a6157662270603ef507f9df0b339b33ad2c25954e55fa5feaa09daf4b

05 Affected products

VendorProductVersionsPlatforms
langchain-ailanggraphjs< 1.3.1—

06 References