# LiteLLM has SQL Injection in Proxy API key verification

Advisory record · `GHSA-r75f-5x8p-qvmc`

- **Identifiers:** `GHSA-r75f-5x8p-qvmc` · `CVE-2026-42208` · `PYSEC-2026-391`
- **State:** Confirmed
- **Severity:** CVSS 9.3 Critical
- **Critical:** Yes: KEV, CVSS 9+, CVSS 7+ and EPSS
- **Weakness (CWE):** [CWE-89](https://cwe.mitre.org/data/definitions/89.html)
- **Tags:** [SQL injection](https://agentprime.io/advisories/tag/sql-injection.md)
- **Published:** 24 Apr 2026
- **Updated:** 5 Oct 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 24 Apr 2026, 16:17 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- In CISA’s KEV catalogue since 8 May 2026: it is known to be exploited.
- CVSS score 9.3: 9.0 or more.
- CVSS score 9.3 (7.0 or more) and EPSS 0.89 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `litellm` (PyPI): affected `>=1.81.16, <1.83.7`; fixed in `1.83.7`

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> LiteLLM versions 1.81.16 up to but not including 1.83.7 are vulnerable to SQL injection in the proxy's API key verification. An unauthenticated attacker can send a crafted Authorization header to any LLM API route, such as POST /chat/completions, and may read data from the proxy's database and possibly modify it. Upgrade to LiteLLM 1.83.7 or later; if that is not immediately possible, set disable_error_logs to true under general_settings.

Written 1 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 9.3 Critical, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N`, from CNA (GitHub_M)

- **CISA KEV:** Listed since 8 May 2026: known to be exploited.
- **EPSS:** 0.89, the 99th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:09 UTC: First seen by agentprime
- 31 Oct 2026, 14:09 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-r75f-5x8p-qvmc)

## Sources

- [GitHub Advisory Database: GHSA-r75f-5x8p-qvmc](https://github.com/advisories/GHSA-r75f-5x8p-qvmc)
- [OSV: GHSA-r75f-5x8p-qvmc](https://osv.dev/vulnerability/GHSA-r75f-5x8p-qvmc)
- <https://github.com/BerriAI/litellm/security/advisories/GHSA-r75f-5x8p-qvmc>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-42208>
- <https://access.redhat.com/security/cve/CVE-2026-42208>
- <https://bugzilla.redhat.com/show_bug.cgi?id=2463965>
- <https://github.com/BerriAI/litellm>
- <https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable>
- <https://github.com/advisories/GHSA-r75f-5x8p-qvmc>
- <https://github.com/pypa/advisory-database/tree/main/vulns/litellm/PYSEC-2026-391.yaml>
- <https://pypi.org/project/litellm>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42208>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-r75f-5x8p-qvmc>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-r75f-5x8p-qvmc/>. Everything for agents: <https://agentprime.io/llms.txt>.