6.5

CVE-2026-84377: berriai litellm Server-Side Request Forgery (SSRF)

CVSS: 6.5v3.1MediumAwaiting analysis
AliasesGHSA-3cv6-jpf6-8222PYSEC-2026-4066openSUSE-SU-2026:11800-1
Published 02-09-2026Last modified 03-09-2026
Open JSON

Vulnerability summary

CVE-2026-84377 is a medium (CVSS 6.5) Server-Side Request Forgery (SSRF) vulnerability in berriai litellm. EPSS estimates a 0.54% chance of exploitation in the next 30 days, higher than 44.3% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.54%
0%100%
Low · +0.23 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 02-09-2026
    PublishedVulnerability first disclosed.
  2. 03-09-2026
    Last modifiedVulnerability information updated.

Description

LiteLLM is a proxy server (AI Gateway) to call LLM APIs in OpenAI (or native) format. Prior to versions 1.88.6 and 1.96.2, any authenticated LiteLLM proxy user could redirect an outbound provider call to a destination the user controls and cause the proxy to send its configured provider credentials to that destination. Request validation in litellm/proxy/auth/auth_utils.py, litellm/proxy/common_request_processing.py, litellm/proxy/health_endpoints/_health_endpoints.py, litellm/proxy/image_endpoints/endpoints.py, and litellm/proxy/litellm_pre_call_utils.py used incomplete checks that did not cover every sensitive parameter or inspect equivalent values across nested request fields, path values, and bracket-notation form data. Routing and credential parameters including api_base, base_url, model_list, fallbacks, and litellm_credential_name could therefore be applied without clearing the operator's stored key, exposing upstream provider credentials and other configured secrets and permitting server-side requests to internal services reachable by the proxy. This issue is fixed in versions 1.88.6 and 1.96.2.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.54%

Chance of exploitation in the next 30 days

Percentile

44%

Versus all other CVEs

30-day change

+0.23 pp

From 0.31% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.54%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard4 products
  • airflow-2All versions (No fix recorded)
  • nemo-skillsAll versions (No fix recorded) | < 0.7.0_git20260911-r1
  • py3.12-airflow-3< 3.3.2-r2
  • py3.13-airflow-3< 3.3.2-r2
Berriai1 product
  • litellm< 1.88.6 | ≥ 1.89.0, < 1.96.2
Opensuse1 product
  • python-litellm&distro=openSUSE Tumbleweed< 1.101.0-1.1
PyPI1 product
  • litellm< 1.88.6 | ≥ 1.89.0, < 1.89.7 | ≥ 1.90.0, < 1.90.7 | ≥ 1.91.0, < 1.91.5 | ≥ 1.92.0, < 1.92.2 | ≥ 1.93.0, < 1.93.2 | ≥ 1.94.0, < 1.94.3 | ≥ 1.95.0, < 1.95.1 | ≥ 1.96.0, < 1.96.2

4 vendors · 7 products

References

15 links
Show all 15 references