CVE-2026-61740

CriticalCVSS 9.3/10Last modified Oct 24, 2026

Description

LightRAG provides simple and fast retrieval-augmented generation. Prior to 1.5.4, when LightRAG is deployed with LIGHTRAG_API_KEY set but AUTH_ACCOUNTS unset, X-API-Key protection can be bypassed because lightrag/api/auth.py falls back to a hardcoded DEFAULT_TOKEN_SECRET, /auth-status and /login can mint guest JWTs, and combined_dependency in lightrag/api/utils_api.py accepts a valid guest token before checking the API key. A remote unauthenticated attacker can call endpoints guarded by combined_auth, including document read, upload, deletion, graph mutation, and query endpoints. This vulnerability is fixed in 1.5.4.

Metrics

CVSS 4.0 9.3/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weakness enumeration

CWE-287 CWE-798

Affected software

No affected versions have been published.

Timeline

Published: Jul 15, 2026
Last modified: Oct 24, 2026
NVD status: Deferred

Related CVEs from 2026

CVE-2026-617419.3http4s-scala-xml provides `EntityDecoder[F, scala.xml.Elem]` instances that parse XML message bodies. Prior to versions 0.24.1 and 1.0.0-M39 CVE-2026-617429.3DBHub is a database MCP server for Postgres, MySQL, SQL Server, Oracle, MariaDB, SQLite. Versions prior to 0.22.5 expose an unauthenticated CVE-2026-617436.3Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.CVE-2026-617446.5InvenTree is an Open Source Inventory Management System. Prior to 1.4.0, POST /api/barcode/ accepts an attacker-synthesized internal JSON ba CVE-2026-617454.3InvenTree is an Open Source Inventory Management System. Prior to 1.4.0, the POST /api/machine/{pk}/restart/ endpoint in src/backend/InvenTr CVE-2026-617465.3InvenTree is an Open Source Inventory Management System. Prior to 1.4.0, PluginSettingList, PluginAllSettingList, and PluginSettingDetail se CVE-2026-617474.3InvenTree is an Open Source Inventory Management System. Prior to 1.4.0, the /api/importer/row/ and /api/importer/mapping/ endpoints do not CVE-2026-617484.3InvenTree is an Open Source Inventory Management System. Prior to 1.4.0, ReportPrint at POST /api/report/print/ and LabelPrint at POST /api/CVE-2026-617496.5InvenTree is an Open Source Inventory Management System. Prior to 1.4.0, privileged staff users who can author report or label templates can CVE-2026-617507.8NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of t CVE-2026-617517.8NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of t CVE-2026-617527.8NVIDIA Megatron Bridge contains a vulnerability where an attacker could cause a deserialization of untrusted data. A successful exploit of t