CVE-2024-8984: Litellm Denial of Service Vulnerability

HIGH
Advisory Identifier: GHSA-fh2c-86xm-pm2x
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CVSS 7.5
CWE-400 CWE-770
Published
Advisory Summary

CVE-2024-8984 is a HIGH (CVSS 7.5) denial of service vulnerability (CWE-400: Uncontrolled Resource Consumption) affecting Litellm libraries in the PyPI ecosystem. The issue involves litellm vulnerable to denial of service (dos) via crafted http request. Remediation is available by upgrading affected packages to version 1.56.2.

CVE-2024-8984 at a Glance

CVE Identifier CVE-2024-8984
GHSA Identifier GHSA-fh2c-86xm-pm2x
Severity HIGH
CVSS v3.1 Base Score 7.5
CWE Classification CWE-400: Uncontrolled Resource Consumption
Affected Product Litellm
Package Ecosystem PyPI
Published Date
Last Updated

Security Impact

CVSS: 7.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity None (I:N)
Availability High (A:H)

How to Fix CVE-2024-8984

To remediate this vulnerability, upgrade all affected Litellm dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

litellm fixed: 1.56.2 
pip install litellm>=1.56.2
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

pip show litellm

How to Check if You Are Affected

To determine whether your Python environment is affected by CVE-2024-8984, inspect your installed packages using pip:

pip show litellm

Analyze the terminal output to locate any version of Litellm in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.56.2), your application is affected.

Note: The pip show litellm command checks currently installed packages in your active Python environment.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-400: Uncontrolled Resource Consumption, where the product does not properly control the allocation and maintenance of a limited resource. In Litellm, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A Denial of Service (DoS) vulnerability exists in berriai/litellm version v1.44.5. This vulnerability can be exploited by appending characters, such as dashes (-), to the end of a multipart boundary in an HTTP request. The server continuously processes each character, leading to excessive resource consumption and rendering the service unavailable. The issue is unauthenticated and does not require any user interaction, impacting all users of the service.

CVE-2024-8984 Affected Litellm Versions

1 component(s)
Fixed Versions:
1.56.2
Product / Package Ecosystem Affected Versions Fixed Version
litellm
pypi/litellm
PyPI
< 1.56.2
1.56.2

References

NVD — CVE-2024-8984 NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-8984
Security Fix Commit FIX COMMIT
https://github.com/BerriAI/litellm/commit/4f49f836aa844ac9b6bfbeff27e6f6b2b9cf3f61
Litellm Source Repository REPOSITORY
https://github.com/BerriAI/litellm
Litellm Source Repository REPOSITORY
https://github.com/BerriAI/litellm/blob/8c5ff150f6142608ffe968e4e68429f978fda187/litellm/tests/test_spend_logs.py#L242
huntr.com/bounties/554fc76b-3... WEB
https://huntr.com/bounties/554fc76b-3097-4223-b4cf-110b853e9355

Frequently Asked Questions

What is CVE-2024-8984?
CVE-2024-8984 is a security vulnerability in Litellm involving LiteLLM Vulnerable to Denial of Service (DoS) via Crafted HTTP Request under CWE-400: Uncontrolled Resource Consumption.
Which Litellm versions are affected?
Affected versions include releases prior to 1.56.2 across affected packages: litellm.
What version fixes CVE-2024-8984?
Upgrading to 1.56.2 (or the latest patched release for your respective branch) resolves the vulnerability.
Is litellm affected?
Yes, litellm is affected in releases prior to 1.56.2. Upgrade your dependency to 1.56.2 or later.
What is the CVSS score of CVE-2024-8984?
CVE-2024-8984 has a CVSS v3.1 base score of 7.5 (HIGH) with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
What CWE is associated with CVE-2024-8984?
CVE-2024-8984 is classified under CWE-400: Uncontrolled Resource Consumption (The product does not properly control the allocation and maintenance of a limited resource.).
How can I check PyPI dependencies for CVE-2024-8984?
Run the dependency tree command: 'pip show litellm'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fh2c-86xm-pm2x",
  "modified" : "2025-10-15T16:10:41Z",
  "published" : "2025-03-20T12:32:49Z",
  "aliases" : [ "CVE-2024-8984" ],
  "summary" : "LiteLLM Vulnerable to Denial of Service (DoS) via Crafted HTTP Request",
  "details" : "A Denial of Service (DoS) vulnerability exists in berriai/litellm version v1.44.5. This vulnerability can be exploited by appending characters, such as dashes (-), to the end of a multipart boundary in an HTTP request. The server continuously processes each character, leading to excessive resource consumption and rendering the service unavailable. The issue is unauthenticated and does not require any user interaction, impacting all users of the service.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "PyPI",
      "name" : "litellm"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.56.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-8984"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/BerriAI/litellm/commit/4f49f836aa844ac9b6bfbeff27e6f6b2b9cf3f61"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/BerriAI/litellm"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/BerriAI/litellm/blob/8c5ff150f6142608ffe968e4e68429f978fda187/litellm/tests/test_spend_logs.py#L242"
  }, {
    "type" : "WEB",
    "url" : "https://huntr.com/bounties/554fc76b-3097-4223-b4cf-110b853e9355"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-400", "CWE-770" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-03-20T20:56:29Z",
    "nvd_published_at" : "2025-03-20T10:15:45Z"
  }
}