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01 Record

CVE-2025-68664

LangChain serialization injection vulnerability enables secret extraction in dumps/loads APIs

CriticalPUBLISHEDCNA: GitHub_M
CNA base score9.3 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N

02 Description

LangChain serialization injection vulnerability enables secret extraction in dumps/loads APIs

03 Exploitation and scoring

Exploitation
Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
SSVC decision
  • ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited 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
42.93% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 98.6% of scored records. A rank, not a probability.
NVD base score
8.2 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
NVD analysis status
Analyzed. NVD last modified this record on 2026-10-19.
Red Hat severity
Critical. Red Hat's rating for its own products, not a CVSS rating.

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
2025-12-23 22:47Z10 MO AGO
Last updated
2025-12-24 14:40Z10 MO AGO
Reserved
2025-12-22
Assigning CNA
GitHub_M
Record state
PUBLISHED
Severity
Critical (CVSS 9.3)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N
Weaknesses
  • CWE-502Deserialization of Untrusted DataBase
Data version
5.2
Document digest
e05b100705bea5fefb8b6e845f397d9a1afc68a12361804f5805d93a202d78e3

05 Affected products

VendorProductVersionsPlatforms
langchain-ailangchain>= 1.0.0, < 1.2.5, < 0.3.81—

06 References