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chore(deps): update dependency litellm to v1.83.0 [security]#462

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chore(deps): update dependency litellm to v1.83.0 [security]#462
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renovate/pypi-litellm-vulnerability

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@renovate renovate bot commented Apr 4, 2026

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This PR body was truncated due to platform limits.

This PR contains the following updates:

Package Change Age Confidence
litellm 1.75.81.83.0 age confidence

GitHub Vulnerability Alerts

CVE-2026-35029

Impact

The /config/update endpoint does not enforce admin role authorization. A user who is already authenticated into the platform can then use this endpoint to do the following:

  • Modify proxy configuration and environment variables
  • Register custom pass-through endpoint handlers pointing to attacker-controlled Python code, achieving remote code execution
  • Read arbitrary server files by setting UI_LOGO_PATH and fetching via /get_image
  • Take over other priveleged accounts by overwriting UI_USERNAME and UI_PASSWORD environment variables

Patches

Fixed in v1.83.0. The endpoint now requires proxy_admin role.

Workarounds

Restrict API key distribution. There is no configuration-level workaround.

Severity
  • CVSS Score: 8.7 / 10 (High)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N

CVE-2026-35030

Impact

When JWT authentication is enabled (enable_jwt_auth: true), the OIDC userinfo cache uses token[:20] as the cache key. JWT headers produced by the same signing algorithm generate identical first 20 characters.

This configuration option is not enabled by default. Most instances are not affected.

An unauthenticated attacker can craft a token whose first 20 characters match a legitimate user's cached token. On cache hit, the attacker inherits the legitimate user's identity and permissions. This affects deployments with JWT/OIDC authentication enabled.

Patches

Fixed in v1.83.0. The cache key now uses the full hash of the JWT token.

Workarounds

Disable OIDC userinfo caching by setting the cache TTL to 0, or disable JWT authentication entirely.

Severity
  • CVSS Score: 9.4 / 10 (Critical)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

GHSA-69x8-hrgq-fjj8

Impact

Three issues combine into a full authentication bypass chain:

  1. Weak hashing: User passwords are stored as unsalted SHA-256 hashes, making them vulnerable to rainbow table attacks and trivially identifying users with identical passwords.
  2. Hash exposure: Multiple API endpoints (/user/info, /user/update, /spend/users) return the password hash field in responses to any authenticated user regardless of role. Plaintext passwords could also potentially be exposed in certain scenarios.
  3. Pass-the-hash: The /v2/login endpoint accepts the raw SHA-256 hash as a valid password without re-hashing, allowing direct login with a stolen

An already authenticated user can retrieve another user's password hash from the API and use it to log in as that user. This enables full privilege escalation in three HTTP requests.

Patches

Fixed in v1.83.0. Passwords are now hashed with scrypt (random 16-byte salt, n=16384, r=8, p=1). Password hashes are stripped from all API responses. Existing SHA-256 hashes are transparently migrated on next login.

Severity
  • CVSS Score: 8.6 / 10 (High)
  • Vector String: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Release Notes

BerriAI/litellm (litellm)

v1.82.3

v1.82.1

What's Changed
New Contributors

Full Changelog: BerriAI/litellm@litellm_presidio-dev-v1.81.16...1.82.1

v1.81.13

What's Changed


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