CyberRota Analysis
AI-GeneratedThe vulnerability affects the SitemapLoader component in langchain_community, which improperly handles nested sitemap entries, allowing an attacker to exploit this flaw by directing the application to fetch internal addresses despite domain restrictions. This can lead to unauthorized disclosure of sensitive internal data through the returned documents. Organizations utilizing this component should prioritize patching this vulnerability to prevent potential data leaks and protect their internal resources.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
SitemapLoader.parse_sitemap in langchain_community/document_loaders/sitemap.py applies the documented restrict_to_same_domain control only to leaf url entries. The loop over url elements filters cross-domain locations, but the loop over nested sitemap elements passes the child loc straight to self.scrape_all([loc.text], "xml"), which reaches WebBaseLoader.scrape_all and an aiohttp GET, with no domain comparison and no check for private, loopback or link-local destinations. An attacker who controls or influences an ingested sitemap can therefore point a nested sitemap entry at an internal address and make the server fetch it even when the deploying application set restrict_to_same_domain to True specifically to confine outbound requests. The fetched content is parsed and surfaces in the returned Documents, so internal responses are disclosed to the caller rather than merely requested.