Is CVE-2026-26019 actively exploited?

No active exploitation of CVE-2026-26019 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-26019 be exploited remotely?

Yes. CVE-2026-26019 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-26019?

CVE-2026-26019 has a CVSS score of 4.1 (MEDIUM) and an EPSS exploitation probability of 0.01%.

HOME VULNERABILITIESCVE-2026-26019

MEDIUM

CVE-2026-26019

CWE-918Published: February 11, 2026· Updated: Feb 12, 2026

4.1

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:0.9th

Official Description

LangChain is a framework for building LLM-powered applications. Prior to 1.1.14, the RecursiveUrlLoader class in @langchain/community is a web crawler that recursively follows links from a starting URL. Its preventOutside option (enabled by default) is intended to restrict crawling to the same site as the base URL. The implementation used String.startsWith() to compare URLs, which does not perform semantic URL validation. An attacker who controls content on a crawled page could include links to domains that share a string prefix with the target, causing the crawler to follow links to attacker-controlled or internal infrastructure. Additionally, the crawler performed no validation against private or reserved IP addresses. A crawled page could include links targeting cloud metadata services, localhost, or RFC 1918 addresses, and the crawler would fetch them without restriction. This vulnerability is fixed in 1.1.14.

NVD Source

Technical Analysis

CVE-2026-26019 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.