CVE-2026-42208 KEV
Patch first
On CISA KEV — known exploited in the wild, due 2026-05-11.
Description
LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. From version 1.81.16 to before version 1.83.7, a database query used during proxy API key checks mixed the caller-supplied key value into the query text instead of passing it as a separate parameter. An unauthenticated attacker could send a specially crafted Authorization header to any LLM API route (for example POST /chat/completions) and reach this query through the proxy's error-handling path. An attacker could read data from the proxy's database and may be able to modify it, leading to unauthorised access to the proxy and the credentials it manages. This issue has been patched in version 1.83.7.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 5.77% — more likely to be exploited than 93% of all CVEs |
| Weakness | CWE-89 |
| On CISA KEV | yes — remediate by 2026-05-11 |
| Public exploit | none known |
| Published | 2026-05-08 |
| Last modified | 2026-07-15 |
CISA KEV
| Name | BerriAI LiteLLM SQL Injection Vulnerability |
|---|---|
| Added | 2026-05-08 |
| Due | 2026-05-11 |
| Vendor / product | BerriAI / LiteLLM |
| Ransomware use | none reported |
Affected (1)
| Vendor | Product |
|---|---|
| litellm | litellm |
References
- https://github.com/BerriAI/litellm/releases/tag/v1.83.7-stable
- https://github.com/BerriAI/litellm/security/advisories/GHSA-r75f-5x8p-qvmc
- https://access.redhat.com/security/cve/CVE-2026-42208
- https://bugzilla.redhat.com/show_bug.cgi?id=2463965
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-42208.json
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-42208
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