CVE Explorer
CVE-2026-26019
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
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"langchainjs","vendor":"langchain-ai","versions":[{"status":"affected","version":"< 1.1.14"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:3e80e85315f205265e6f10f8fea1c8fa88f0b37a83a57b549e57cc8055962e4e · sha256:05ab1956f2df3a81… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.1,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:3e80e85315f205265e6f10f8fea1c8fa88f0b37a83a57b549e57cc8055962e4e · sha256:05ab1956f2df3a81… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-918","description":"CWE-918: Server-Side Request Forgery (SSRF)","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:3e80e85315f205265e6f10f8fea1c8fa88f0b37a83a57b549e57cc8055962e4e · sha256:05ab1956f2df3a81… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/langchain-ai/langchainjs/commit/d5e3db0d01ab321ec70a875805b2f74aefdadf9d","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langchainjs/commit/d5e3db0d01ab321ec70a875805b2f74aefdadf9d"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3e80e85315f205265e6f10f8fea1c8fa88f0b37a83a57b549e57cc8055962e4e · sha256:05ab1956f2df3a81… · /containers/cna/references/2
{"name":"https://github.com/langchain-ai/langchainjs/pull/9990","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langchainjs/pull/9990"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3e80e85315f205265e6f10f8fea1c8fa88f0b37a83a57b549e57cc8055962e4e · sha256:05ab1956f2df3a81… · /containers/cna/references/1
{"name":"https://github.com/langchain-ai/langchainjs/releases/tag/%40langchain%2Fcommunity%401.1.14","tags":["x_refsource_MISC"],"url":"https://github.com/langchain-ai/langchainjs/releases/tag/%40langchain%2Fcommunity%401.1.14"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3e80e85315f205265e6f10f8fea1c8fa88f0b37a83a57b549e57cc8055962e4e · sha256:05ab1956f2df3a81… · /containers/cna/references/3
{"name":"https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-gf3v-fwqg-4vh7","tags":["x_refsource_CONFIRM"],"url":"https://github.com/langchain-ai/langchainjs/security/advisories/GHSA-gf3v-fwqg-4vh7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:3e80e85315f205265e6f10f8fea1c8fa88f0b37a83a57b549e57cc8055962e4e · sha256:05ab1956f2df3a81… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.