CVE-2026-41488 - CERT CVE
ID CVE-2026-41488
Sažetak LangChain is a framework for building agents and LLM-powered applications. Prior to 1.1.14, langchain-openai's _url_to_size() helper (used by get_num_tokens_from_messages for image token counting) validated URLs for SSRF protection and then fetched them in a separate network operation with independent DNS resolution. This left a TOCTOU / DNS rebinding window: an attacker-controlled hostname could resolve to a public IP during validation and then to a private/localhost IP during the actual fetch.
Reference
CVSS
Base: 3.1
Impact: 1.4
Exploitability:1.6
Pristup
VektorSloženostAutentikacija
NETWORK HIGH NONE
Impact
PovjerljivostCjelovitostDostupnost
LOW NONE NONE
CVSS vektor CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
Zadnje važnije ažuriranje 24-04-2026 - 21:16
Objavljeno 24-04-2026 - 21:16