CVE & CISA-KEV Catalog

CVE-2026-42208

CRITICALCISA KEVEPSS 100th pctl
9.8
CVSS v3
NVD

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.

How to fix

Remediation Available
litellmNVD
Affected:>= 1.81.16, < 1.83.7Fixed in:1.83.7CVE-2026-42208derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

89.42%probability of exploitation in 30 days
100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

BerriAI LiteLLM SQL Injection Vulnerability

BerriAI LiteLLM contains a SQL injection vulnerability that allows an attacker to read data from the proxy's database and potentially modify it, leading to unauthorised access to the proxy and the credentials it manages.

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Remediation due: 2026-05-11

References

Government Resource1
Release Notes1

Related Vulnerabilities

Other CWE-89 (SQL Injection) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2014-3704High7.5100%-Fix
CVE-2015-7297High7.5100%--
CVE-2024-29824High8.8100%KEVFix
CVE-2023-34362Critical9.8100%KEV + RansomFix
CVE-2019-7481High7.5100%KEV + RansomFix
CVE-2024-29826High8.8100%-Fix

Common questions

How do I fix CVE-2026-42208?

Upgrade litellm to 1.83.7 or later.

Is CVE-2026-42208 being actively exploited?

Yes. CVE-2026-42208 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2026-05-11. Treat it as a priority whatever its CVSS score says.

How severe is CVE-2026-42208?

CVE-2026-42208 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-42208 affect?

Published advisories record a fix for litellm (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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CVE-2026-42208 severity badge

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This vulnerability is actively exploited in the wild

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-15.