CVE-2026-12774: A security vulnerability has been detected in BerriAI litellm up to 1.82.2

Q: How do I fix CVE-2026-12774?

litellm: upgrade to newer than 1.82.2. Exact commands for each OS are on this page.

Q: Is CVE-2026-12774 being exploited?

CVE-2026-12774 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-12774 affect?

CVE-2026-12774 affects litellm. Severity is medium (CVSS 6.3). A security vulnerability has been detected in BerriAI litellm up to 1.82.2. Affected by this vulnerability is the function _execute_with_mcp_client of the file litellm/proxy/_experimental/mcp_server/rest_endpoints.py of the component MCP Se

Q: How urgent is CVE-2026-12774?

Priority 36/100. Public exploit reference

Routine

MEDIUM 6.3UPGRADE

CVE-2026-12774 is a medium-severity flaw (CVSS 6.3) affecting litellm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A security vulnerability has been detected in BerriAI litellm up to 1.82.2. Affected by this vulnerability is the function _execute_with_mcp_client of the file litellm/proxy/_experimental/mcp_server/rest_endpoints.py of the component MCP Server Connection Testing. The manipulation leads to server-side request forgery. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted e

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 66%)
CISA exploited list	No
Weakness	CWE-918
Published	2026-06-21
Last modified	2026-10-25

Publisher (CNA): VulDB · Vendor: litellm

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-21 04:16 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

litellm litellm UPGRADE

Affected: <= 1.82.2

Fixed in: newer than 1.82.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy litellm || rpm -q litellm || litellm --version

2. UPGRADE to newer than 1.82.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade litellm

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade litellm

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-12774?

litellm: upgrade to newer than 1.82.2. Exact commands for each OS are on this page.

Is CVE-2026-12774 being exploited?

CVE-2026-12774 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-12774 affect?

CVE-2026-12774 affects litellm. Severity is medium (CVSS 6.3). A security vulnerability has been detected in BerriAI litellm up to 1.82.2. Affected by this vulnerability is the function _execute_with_mcp_client of the file litellm/proxy/_experimental/mcp_server/rest_endpoints.py of the component MCP Se

How urgent is CVE-2026-12774?

Priority 36/100. Public exploit reference

Related CVEs

CVE-2026-49468 CRITICAL 9.8 UPGRADE LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format
CVE-2026-12773 HIGH 7.3 UPGRADE A weakness has been identified in BerriAI litellm up to 1.59.8
CVE-2026-12795 HIGH 7.3 UPGRADE A vulnerability was determined in BerriAI litellm up to 1.82.2
CVE-2026-12796 MEDIUM 6.3 UPGRADE A vulnerability was identified in BerriAI litellm up to 1.82.2
CVE-2026-12770 MEDIUM 5.4 UPGRADE A vulnerability was determined in BerriAI litellm up to 1.63.1

References

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