GHSA-mphv-75cg-56wgPublished

LangChain Community: redirect chaining can lead to SSRF bypass via RecursiveUrlLoader

cve-program · CVE-2026-27795

Published

langchainjs

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "langchain-ai",
                    "product": "langchainjs",
                    "versions": [
                        {
                            "version": "< 1.1.18",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-8697

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Feb 25, 2026, 5:30:01 PM

dateUpdated: Feb 25, 2026, 6:42:52 PM

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-27795

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-918

Original publisher date fields

published: 2026-02-25T18:23:41.153

lastModified: 2026-06-17T10:27:41.753

1 source CPE criteria · context only

cpe:2.3:a:langchain:langchain_community:*:*:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-mphv-75cg-56wg

Published

@langchain/community

npm

SEMVER · introduced 0 → fixed 1.1.18

Original source record · Cite this exact observation · Complete original publisher JSON