VulnerabilityDeferred

CVE-2025-6984

The langchain-ai/langchain project, specifically the EverNoteLoader component, is vulnerable to XML External Entity (XXE) attacks due to insecure XML parsing.

HIGH 7.5EPSS 1.65%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The langchain-ai/langchain project, specifically the EverNoteLoader component, is vulnerable to XML External Entity (XXE) attacks due to insecure XML parsing. The affected version is 0.3.63. The vulnerability arises from the use of etree.iterparse() without disabling external entity references, which can lead to sensitive information disclosure. An attacker could exploit this by crafting a malicious XML payload that references local files, potentially exposing sensitive data such as /etc/passwd.

CVSS 3.0: 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS: 1.65% probability · 75th percentile
CISA KEV: Not listed
Weakness: CWE-200
Source: security@huntr.dev

References

https://huntr.com/bounties/a6b521cf-258c-41c0-9edb-d8ef976abb2a

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.