CVE-2024-0243: low-severity vulnerability in langchain-ai/langchain
Server-side Request Forgery In Recursive URL Loader
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
8Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 3.7epss 0.5%
With the following crawler configuration:
```python
from bs4 import BeautifulSoup as Soup
url = "https://example.com"
loader = RecursiveUrlLoader(
url=url, max_depth=2, extractor=lambda x: Soup(x, "html.parser").text
)
docs = loader.load()
```
An attacker in control of the contents of `https://example.com` could place a malicious HTML file in there with links like "https://example.completely.different/my_file.html" and the crawler would proceed to download that file as well even though `prevent_outside=True`.
https://github.com/langchain-ai/langchain/blob/bf0b3cc0b5ade1fb95a5b1b6fa260e99064c2e22/libs/community/langchain_community/document_loaders/recursive_url_loader.py#L51-L51
Resolved in https://github.com/langchain-ai/langchain/pull/15559
CVSS:3.0/AV:L/AC:H/PR:H/UI:R/S:C/C:L/I:L/A:N
Affected products
langchain-ai · langchain-ai/langchainRelated CVEs — langchain-ai/langchain
In the same product, most dangerous first.
CVE-2025-2828HIGHSSRF Vulnerability in RequestsToolkit in langchain-ai/langchainEPSS 21.0%CVE-2024-8309MEDIUMSQL Injection in langchain-ai/langchainEPSS 13.7%CVE-2024-3571MEDIUMPath Traversal in langchain-ai/langchainEPSS 1.9%CVE-2025-6984HIGHSensitive Information Disclosure Due to Insecure XML Parsing in langchain-ai/langchainEPSS 1.6%CVE-2024-1455MEDIUMBillion Laughs Attack leading to DoS in langchain-ai/langchainEPSS 0.8%CVE-2024-3095MEDIUMSSRF in Langchain Web Research Retriever in langchain-ai/langchainEPSS 0.7%