{"id":"CVE-2026-114612","aliases":["EUVD-2026-108277","GHSA-7hp6-4w63-5g45"],"status":"published","title":"LiteLLM: Privilege Escalation to Proxy Admin via Cross-Domain Reuse of the Salt Key","description":"LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From 1.87.0 until 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2, the proxy reuses one cryptographic context for at-rest secrets and session tokens, allowing an authenticated internal user to have crafted metadata containing a forged administrator credential encrypted and returned by the API-key flow. Replaying that ciphertext as a bearer token causes the proxy to trust the forged proxy administrator identity, permitting administrative access and arbitrary commands through the MCP stdio endpoint. Versions 1.87.0 through 1.90.x require EXPERIMENTAL_UI_LOGIN to be enabled, while versions after 1.91.0 are exploitable in the default configuration. This issue was fixed in LiteLLM 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2.","severity":{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00319,"percentile":0.25221,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":true,"fix_available":true},"cwes":["CWE-269","CWE-345","CWE-441"],"published":"2026-10-22T18:01:52Z","modified":"2026-11-01T02:30:17Z","exploits":[{"source":"pocgithub","id":"FORTBRIDGE-UK/CVEs","title":"FORTBRIDGE-UK/CVEs","date":"2026-11-05","url":"https://github.com/FORTBRIDGE-UK/CVEs"}],"fixes":[{"ecosystem":"PyPI","package":"litellm","fixed_in":["1.100.4","1.101.3","1.102.2","1.103.1","1.104.0rc2"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"litellm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.91.0"},{"fixed":"1.100.4"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"litellm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.101.0"},{"fixed":"1.101.3"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"litellm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.102.0"},{"fixed":"1.102.2"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"litellm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.103.0"},{"fixed":"1.103.1"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"litellm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.104.0rc1"},{"fixed":"1.104.0rc2"}]}]},{"source":"osv","ecosystem":"PyPI","package":"litellm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.91.0"},{"fixed":"1.100.4"}]}],"versions":["1.100.0","1.100.0.dev1","1.100.0.dev2","1.100.0rc1","1.100.1","1.100.2","1.100.3","1.91.0","1.91.1","1.91.2","1.91.3","1.91.4","1.91.5","1.92.0","1.92.0.dev1","1.92.0.dev2","1.92.0rc1","1.92.0rc2","1.92.1","1.92.2","1.93.0","1.93.0.dev1","1.93.0.dev2","1.93.0.dev3","1.93.0rc1","1.93.0rc2","1.93.1","1.93.2","1.94.0","1.94.0.dev3","1.94.0rc1","1.94.0rc2","1.94.0rc3","1.94.1","1.94.2","1.94.3","1.95.0","1.95.0.dev3","1.95.0rc1","1.95.0rc2","1.95.0rc3","1.95.1","1.96.0","1.96.0.dev2","1.96.0rc1","1.96.2","1.97.0","1.97.0.dev1","1.97.0rc1","1.98.0","1.98.0.dev1","1.98.0.dev2","1.98.0rc1","1.98.1","1.99.0","1.99.0.dev1","1.99.0.dev2","1.99.0rc1","1.99.0rc2","1.99.2","1.99.3","1.99.4"]},{"source":"osv","ecosystem":"PyPI","package":"litellm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.101.0"},{"fixed":"1.101.3"}]}],"versions":["1.101.0","1.101.1","1.101.2"]},{"source":"osv","ecosystem":"PyPI","package":"litellm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.102.0"},{"fixed":"1.102.2"}]}],"versions":["1.102.0","1.102.1"]},{"source":"osv","ecosystem":"PyPI","package":"litellm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.103.0"},{"fixed":"1.103.1"}]}],"versions":["1.103.0"]},{"source":"osv","ecosystem":"PyPI","package":"litellm","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.104.0rc1"},{"fixed":"1.104.0rc2"}]}],"versions":["1.104.0rc1"]}],"products":[{"vendor":"berriai","product":"litellm"}],"references":[{"url":"https://github.com/BerriAI/litellm/security/advisories/GHSA-7hp6-4w63-5g45","tags":["x_refsource_CONFIRM","advisory","web"]},{"url":"https://github.com/BerriAI/litellm/commit/1d5fdc87fed66b49e1df8cf7d708ad93249eb7d0","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/BerriAI/litellm/commit/9161d7f9d6073603ba61ee4aa5e2c0ef5b37a81b","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/BerriAI/litellm/commit/9fa1a641119dd0d4fe43e93622eae5f482ceb63f","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/BerriAI/litellm/commit/a80eacacee118fbed54e3d98f239d17a63fac818","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/BerriAI/litellm/commit/f7cd90f09e9716652b38daec9f0640cdf49d582b","tags":["x_refsource_MISC","fix","web"]},{"url":"https://github.com/BerriAI/litellm/releases/tag/v1.100.4","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/BerriAI/litellm/releases/tag/v1.101.3","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/BerriAI/litellm/releases/tag/v1.102.2","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/BerriAI/litellm/releases/tag/v1.103.1","tags":["x_refsource_MISC","web"]},{"url":"https://github.com/BerriAI/litellm/releases/tag/v1.104.0-rc.2","tags":["x_refsource_MISC","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114612","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-7hp6-4w63-5g45"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/114xxx/CVE-2026-114612.json","tags":["advisory"]},{"url":"https://github.com/BerriAI/litellm","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2026-114612","title":"LiteLLM: Privilege Escalation to Proxy Admin via Cross-Domain Reuse of the Salt Key","description":"LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From 1.87.0 until 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2, the proxy reuses one cryptographic context for at-rest secrets and session tokens, allowing an authenticated internal user to have crafted metadata containing a forged administrator credential encrypted and returned by the API-key flow. Replaying that ciphertext as a bearer token causes the proxy to trust the forged proxy administrator identity, permitting administrative access and arbitrary commands through the MCP stdio endpoint. Versions 1.87.0 through 1.90.x require EXPERIMENTAL_UI_LOGIN to be enabled, while versions after 1.91.0 are exploitable in the default configuration. This issue was fixed in LiteLLM 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2.","status":"published","published":"2026-10-22T18:01:52.768Z","modified":"2026-10-30T18:17:34.432Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"cwes":["CWE-269","CWE-345","CWE-441"],"updated_at":"2026-11-02T13:40:01.309549Z"}],"euvd":[{"id":"EUVD-2026-108277","description":"LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From 1.87.0 until 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2, the proxy reuses one cryptographic context for at-rest secrets and session tokens, allowing an authenticated internal user to have crafted metadata containing a forged administrator credential encrypted and returned by the API-key flow. Replaying that ciphertext as a bearer token causes the proxy to trust the forged proxy administrator identity, permitting administrative access and arbitrary commands through the MCP stdio endpoint. Versions 1.87.0 through 1.90.x require EXPERIMENTAL_UI_LOGIN to be enabled, while versions after 1.91.0 are exploitable in the default configuration. This issue was fixed in LiteLLM 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2.","status":"published","published":"2026-10-22T18:01:52Z","modified":"2026-10-30T18:17:34Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-02T16:59:03.071815Z"}],"ghsa":[{"id":"GHSA-7hp6-4w63-5g45","title":"LiteLLM: Privilege Escalation to Proxy Admin via Cross-Domain Reuse of the Salt Key","description":"### Summary\n\nAn authenticated user with `internal_user` privileges can escalate to `proxy_admin` and achieve remote code execution. The proxy uses one encryption key for two purposes: sealing secrets at rest and minting session tokens. An attacker exploits this by requesting a new API key with a crafted metadata field containing a forged admin credential as the \"secret\" value. The proxy encrypts and returns this payload. When this value is then presented as a bearer token, the proxy decrypts it, trusts the forged admin identity, and grants full administrative access, including the ability to execute arbitrary commands via the MCP stdio endpoint.\n\n### Affected versions\n\nVersions later than 1.91.0 are exploitable in the default configuration. Versions 1.87.0 through 1.90.x are exploitable only if `EXPERIMENTAL_UI_LOGIN=true` was explicitly set.\n\n### Mitigation\n\nUpgrade to a patched version as soon as possible.\n\nIf you cannot upgrade immediately, set `EXPERIMENTAL_UI_LOGIN=false`. This disables the vulnerable authentication path but also breaks CLI SSO and Claude Code gateway login.\n\n### Impact\n\nAn internal user can escalate to proxy admin and execute arbitrary commands on the host.\n\n**Discovery Credit:** Hoa X. Nguyen (OPSWAT Unit 515)","status":"published","published":"2026-10-27T15:04:14Z","modified":"2026-10-27T15:04:15Z","cvss":[{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-269","CWE-345","CWE-441"],"updated_at":"2026-11-02T14:41:37.912288Z"}],"nvd":[{"id":"CVE-2026-114612","description":"LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From 1.87.0 until 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2, the proxy reuses one cryptographic context for at-rest secrets and session tokens, allowing an authenticated internal user to have crafted metadata containing a forged administrator credential encrypted and returned by the API-key flow. Replaying that ciphertext as a bearer token causes the proxy to trust the forged proxy administrator identity, permitting administrative access and arbitrary commands through the MCP stdio endpoint. Versions 1.87.0 through 1.90.x require EXPERIMENTAL_UI_LOGIN to be enabled, while versions after 1.91.0 are exploitable in the default configuration. This issue was fixed in LiteLLM 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2.","status":"published","published":"2026-10-22T19:17:37.54Z","modified":"2026-10-30T19:18:11.367Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"}],"cwes":["CWE-269","CWE-345","CWE-441"],"updated_at":"2026-11-02T14:13:02.724605Z"}],"osv":[{"id":"CVE-2026-114612","title":"LiteLLM: Privilege Escalation to Proxy Admin via Cross-Domain Reuse of the Salt Key","description":"LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From 1.87.0 until 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2, the proxy reuses one cryptographic context for at-rest secrets and session tokens, allowing an authenticated internal user to have crafted metadata containing a forged administrator credential encrypted and returned by the API-key flow. Replaying that ciphertext as a bearer token causes the proxy to trust the forged proxy administrator identity, permitting administrative access and arbitrary commands through the MCP stdio endpoint. Versions 1.87.0 through 1.90.x require EXPERIMENTAL_UI_LOGIN to be enabled, while versions after 1.91.0 are exploitable in the default configuration. This issue was fixed in LiteLLM 1.100.4, 1.101.3, 1.102.2, 1.103.1, and 1.104.0-rc.2.","status":"published","published":"2026-10-22T18:01:52.768Z","modified":"2026-11-01T02:30:17.850549337Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"cwes":["CWE-269","CWE-345","CWE-441"],"updated_at":"2026-11-02T15:44:56.310988Z"},{"id":"GHSA-7hp6-4w63-5g45","title":"LiteLLM: Privilege Escalation to Proxy Admin via Cross-Domain Reuse of the Salt Key","description":"### Summary\n\nAn authenticated user with `internal_user` privileges can escalate to `proxy_admin` and achieve remote code execution. The proxy uses one encryption key for two purposes: sealing secrets at rest and minting session tokens. An attacker exploits this by requesting a new API key with a crafted metadata field containing a forged admin credential as the \"secret\" value. The proxy encrypts and returns this payload. When this value is then presented as a bearer token, the proxy decrypts it, trusts the forged admin identity, and grants full administrative access, including the ability to execute arbitrary commands via the MCP stdio endpoint.\n\n### Affected versions\n\nVersions later than 1.91.0 are exploitable in the default configuration. Versions 1.87.0 through 1.90.x are exploitable only if `EXPERIMENTAL_UI_LOGIN=true` was explicitly set.\n\n### Mitigation\n\nUpgrade to a patched version as soon as possible.\n\nIf you cannot upgrade immediately, set `EXPERIMENTAL_UI_LOGIN=false`. This disables the vulnerable authentication path but also breaks CLI SSO and Claude Code gateway login.\n\n### Impact\n\nAn internal user can escalate to proxy admin and execute arbitrary commands on the host.\n\n**Discovery Credit:** Hoa X. Nguyen (OPSWAT Unit 515)","status":"published","published":"2026-10-27T15:04:14Z","modified":"2026-10-27T15:15:08.260681544Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"},{"version":"4.0","score":7.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-269","CWE-345","CWE-441"],"updated_at":"2026-11-02T15:46:41.002603Z"}]}}