{"answers":{"affected":"3 open source packages ship an affected version, including litellm. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-49468 exists.","fix":"Upgrade litellm to 1.84.0 or later.","what":"CVE-2026-49468 is a critical authentication bypass vulnerability in BerriAI litellm, published on 22 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-49468 and fix it if it is affected.\n\nWhat it is: CVE-2026-49468 is a critical authentication bypass vulnerability in BerriAI litellm, published on 22 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-49468 exists.\n\nAffected packages and fixed versions:\n- litellm (PyPI): affected all versions; fixed in 1.84.0\n- litellm (PyPI): affected all versions; fixed in 1.84.0\n- litellm (PyPI): affected all versions; fixed in 1.84.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-49468/ (Markdown: https://insights.sbomify.com/CVE-2026-49468/index.md)","id":"CVE-2026-49468","markdown":"https://insights.sbomify.com/CVE-2026-49468/index.md","name":"CVE-2026-49468","record":{"aliases":["CLEANSTART-2026-PO19618","ECHO-472d-a2db-709d","GHSA-4xpc-pv4p-pm3w","MINI-2933-9pph-9xwj","MINI-3hvp-r9fc-rpxp","MINI-447f-xq53-g887","MINI-5c25-v63v-42m8","MINI-gm4v-5jxc-8h7m","MINI-jc65-7rg6-fpm4","PYSEC-2026-388"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["security_bypass","data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"AI Gateway Proxy","requires_auth":"none","summary":"Attackers can bypass authentication on protected management routes by manipulating the Host header, potentially accessing sensitive data.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"litellm","vendor":"litellm"}],"cvss":{"score":9.5,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"description":"LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to 1.84.0, a Host-header parsing flaw in the LiteLLM proxy could, under specific conditions, allow unauthenticated access to protected management routes. The auth layer derived the effective route from request.url.path in litellm/proxy/auth/auth_utils.py::get_request_route(), which Starlette reconstructs from the Host header. A crafted Host could therefore make the auth gate evaluate a different route from the one FastAPI dispatched. This vulnerability is fixed in 1.84.0.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":"2026-07-03","github_poc":1,"max_poc_stars":5,"metasploit":0,"nuclei":1,"refs":[{"date":"2026-07-03T06:05:18Z","kind":"github_poc","ref":"https://github.com/BiiTts/CVE-2026-49468-LiteLLM-Auth-Bypass","stars":5,"title":"CVE-2026-49468 — LiteLLM (\u003c1.84.0) unauthenticated auth bypass via Host-header route confusion. PoC + docker lab."},{"date":null,"kind":"nuclei","ref":"http/cves/2026/CVE-2026-49468.yaml","stars":null,"title":"LiteLLM Proxy \u003c 1.84.0 - Host Header Authentication Bypass"}],"tier":"weaponised"},"has_fix":true,"headline":"LiteLLM: Authentication Bypass via Host Header Injection","id":"CVE-2026-49468","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"GLPI: LDAP filter injection in user import feature","id":"CVE-2026-49469"},"packages":[{"ecosystem":"PyPI","fixed":["1.84.0"],"introduced":["0"],"last_affected":[],"package":"litellm","purl":null,"source":"GHSA-4xpc-pv4p-pm3w"},{"ecosystem":"PyPI","fixed":["1.84.0"],"introduced":["0"],"last_affected":[],"package":"litellm","purl":"pkg:pypi/litellm","source":"GHSA-4xpc-pv4p-pm3w"},{"ecosystem":"PyPI","fixed":["1.84.0"],"introduced":["0"],"last_affected":[],"package":"litellm","purl":"pkg:pypi/litellm","source":"PYSEC-2026-388"}],"prev":{"headline":"TOTP enrollment hijack: password gate skipped due to unawaited promise","id":"CVE-2026-49467"},"products":["litellm"],"published":"2026-06-22","related":[{"cvss_score":9.3,"headline":"BerriAI LiteLLM SQL Injection","id":"CVE-2026-42208","kev_date_added":"2026-05-08","published":"2026-05-08"},{"cvss_score":8.8,"headline":"BerriAI LiteLLM Improper Authentication","id":"CVE-2026-59822","kev_date_added":"2026-09-02","published":"2026-07-08"},{"cvss_score":8.7,"headline":"BerriAI LiteLLM Command Injection","id":"CVE-2026-42271","kev_date_added":"2026-06-08","published":"2026-05-08"},{"cvss_score":9.8,"headline":"Remote Code Execution in BerriAI/litellm","id":"CVE-2024-5751","kev_date_added":null,"published":"2024-06-27"},{"cvss_score":9.8,"headline":"Server-Side Template Injection in BerriAI/litellm","id":"CVE-2024-2952","kev_date_added":null,"published":"2024-04-10"},{"cvss_score":9.4,"headline":"LiteLLM has an authentication bypass via OIDC userinfo cache key collision","id":"CVE-2026-35030","kev_date_added":null,"published":"2026-04-06"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"},{"class":"attribution","licence":"MIT","name":"Nuclei templates"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-07-15","vendors":["BerriAI"]},"summary":"Attackers can bypass authentication on protected management routes by manipulating the Host header, potentially accessing sensitive data.","url":"https://insights.sbomify.com/CVE-2026-49468/"}