GHSA-hx8v-g79f-8w5f

Suggest an improvement
Source
https://github.com/advisories/GHSA-hx8v-g79f-8w5f
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-hx8v-g79f-8w5f/GHSA-hx8v-g79f-8w5f.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-hx8v-g79f-8w5f
Aliases
Downstream
ECHO (1)
MINI (6)
Published
2026-09-17T14:51:21Z
Modified
2026-09-17T15:00:05Z
Severity
  • 5.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N CVSS Calculator
Summary
LiteLLM Proxy has server-side request forgery via the `user_config` request parameter
Details

Summary

A server-side request forgery in LiteLLM Proxy lets an authenticated caller redirect the proxy's outbound request to a host of their choosing by smuggling an api_base inside the user_config request body, bypassing the existing parameter guard.

Details

LiteLLM Proxy validates request bodies with is_request_body_safe, which blocks the api_base and base_url parameters but does not cover user_config. The user_config object is used to build the outbound router for a request, so a caller can place an api_base inside it and reach an arbitrary host. The guard only inspected the two top-level keys, so the same api_base nested inside user_config was never checked.

Exploitation requires a valid virtual key.

Impact

An authenticated caller can make the proxy issue server-side requests to internal or external hosts of their choosing, reaching endpoints the caller cannot otherwise access.

Affected / Patched

Affected: <= 1.83.8 Patched: 1.83.9

Remediation

Upgrade to 1.83.9 or later (released 2026-04-17).

Database specific 
{
    "cwe_ids":  [
        "CWE-918"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-09-17T14:51:21Z",
    "nvd_published_at":  "2026-09-16T19:17:21Z",
    "severity":  "MODERATE"
}
References

Affected packages

PyPI / litellm

Package

Name
litellm
View open source insights on deps.dev
Purl
pkg:pypi/litellm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.83.9

Affected versions

0.*
0.1.0
0.1.1
0.1.2
0.1.3
0.1.31
0.1.32
0.1.34
0.1.201
0.1.202
0.1.203
0.1.204
0.1.205
0.1.206
0.1.207
0.1.208
0.1.209
0.1.210
0.1.211
0.1.212
0.1.213
0.1.214
0.1.215
0.1.216
0.1.217
0.1.218
0.1.219
0.1.220
0.1.221
0.1.222
0.1.223
0.1.224
0.1.225
0.1.226
0.1.227
0.1.228
0.1.229
0.1.230
0.1.231
0.1.232
0.1.233
0.1.234
0.1.235
0.1.236
0.1.237
0.1.238
0.1.330
0.1.331
0.1.341
0.1.343
0.1.345
0.1.347
0.1.348
0.1.349
0.1.351
0.1.352
0.1.353
0.1.354
0.1.356
0.1.360
0.1.361
0.1.362
0.1.363
0.1.364
0.1.365
0.1.366
0.1.367
0.1.368
0.1.369
0.1.370
0.1.371
0.1.372
0.1.373
0.1.375
0.1.376
0.1.379
0.1.380
0.1.381
0.1.383
0.1.384
0.1.385
0.1.386
0.1.387
0.1.388
0.1.389
0.1.392
0.1.393
0.1.394
0.1.398
0.1.399
0.1.400
0.1.401
0.1.402
0.1.403
0.1.404
0.1.405
0.1.410
0.1.411
0.1.412
0.1.415
0.1.419
0.1.420
0.1.421
0.1.422
0.1.424
0.1.425
0.1.426
0.1.429
0.1.433
0.1.434
0.1.435
0.1.436
0.1.437
0.1.438
0.1.439
0.1.440
0.1.441
0.1.442
0.1.443
0.1.444
0.1.445
0.1.446
0.1.447
0.1.448
0.1.449
0.1.450
0.1.451
0.1.452
0.1.456
0.1.457
0.1.459
0.1.460
0.1.461
0.1.464
0.1.465
0.1.475
0.1.477
0.1.479
0.1.480
0.1.481
0.1.482
0.1.486
0.1.487
0.1.488
0.1.490
0.1.491
0.1.492
0.1.493
0.1.494
0.1.495
0.1.497
0.1.500
0.1.501
0.1.504
0.1.507
0.1.508
0.1.509
0.1.510
0.1.511
0.1.512
0.1.516
0.1.517
0.1.518
0.1.520
0.1.525
0.1.530
0.1.531
0.1.533
0.1.535
0.1.536
0.1.537
0.1.538
0.1.544
0.1.546
0.1.547
0.1.548
0.1.549
0.1.550
0.1.551
0.1.552
0.1.553
0.1.554
0.1.555
0.1.556
0.1.557
0.1.558
0.1.559
0.1.560
0.1.561
0.1.562
0.1.563
0.1.567
0.1.568
0.1.569
0.1.570
0.1.574
0.1.578
0.1.580
0.1.582
0.1.583
0.1.585
0.1.586
0.1.587
0.1.590
0.1.591
0.1.593
0.1.595
0.1.596
0.1.597
0.1.598
0.1.600
0.1.601
0.1.604
0.1.605
0.1.607
0.1.609
0.1.610
0.1.615
0.1.618
0.1.619
0.1.620
0.1.621
0.1.623
0.1.624
0.1.625
0.1.626
0.1.629
0.1.630
0.1.631
0.1.632
0.1.634
0.1.635
0.1.636
0.1.638
0.1.639
0.1.641
0.1.642
0.1.643
0.1.644
0.1.645
0.1.646
0.1.647
0.1.648
0.1.649
0.1.650
0.1.651
0.1.652
0.1.674
0.1.680
0.1.681
0.1.683
0.1.685
0.1.686
0.1.687
0.1.689
0.1.690
0.1.692
0.1.693
0.1.696
0.1.697
0.1.698
0.1.700.dev0
0.1.700.dev1
0.1.700.dev2
0.1.700.dev3
0.1.700.dev4
0.1.700.dev5
0.1.700
0.1.702
0.1.704
0.1.706
0.1.714.dev1
0.1.714
0.1.715
0.1.716
0.1.719
0.1.720
0.1.721
0.1.723
0.1.724
0.1.729
0.1.736
0.1.738
0.1.743
0.1.745
0.1.746
0.1.747
0.1.748
0.1.749
0.1.750
0.1.751
0.1.758
0.1.765
0.1.769
0.1.772
0.1.774
0.1.780
0.1.781
0.1.784
0.1.786
0.1.788
0.1.789
0.1.793
0.1.794
0.1.805
0.1.806
0.1.807
0.1.813
0.1.814
0.1.815
0.1.816
0.1.817
0.1.818
0.1.819
0.1.820
0.1.821
0.1.824
0.1.2291
0.1.7701
0.1.7713
0.2.5
0.2.6
0.3.0
0.3.1
0.4.0
0.4.4
0.5.2
0.5.3
0.5.4
0.5.6
0.6.0
0.6.1
0.6.2
0.6.6
0.7.1.dev1
0.7.1.dev2
0.7.1.dev3
0.7.1
0.7.3
0.7.4
0.7.5
0.7.9
0.7.10
0.8.0
0.8.1
0.8.2
0.8.3
0.8.4
0.8.5
0.8.6
0.9.0
0.9.1
0.9.2.dev1
0.9.2
0.10.0
0.10.1
0.11.1
0.12.4.dev1
0.12.4.dev2
0.12.4
0.12.5.dev1
0.12.5
0.12.7.dev1
0.12.7
0.12.8
0.12.9
0.12.10
0.12.11
0.12.12
0.13.0
0.13.1.dev1
0.13.1.dev2
0.13.1.dev3
0.13.1
0.13.2.dev1
0.13.2
0.13.3.dev1
0.13.3.dev2
0.13.6.dev1
0.13.6.dev2
0.13.6.dev3
0.13.7.dev1
0.14.0.dev1
0.14.0
0.14.1
1.*
1.0.0.dev1
1.0.0
1.0.3.dev1
1.0.3
1.1.0
1.1.1
1.1.2
1.1.3
1.2.0
1.3.1
1.3.3.dev1
1.3.3.dev2
1.3.3.dev3
1.3.3
1.4.0
1.6.0
1.7.1
1.7.2
1.7.3
1.7.4
1.7.5
1.7.6
1.7.7
1.7.8
1.7.9
1.7.11
1.7.12
1.8.1
1.9.dev0
1.9.0
1.9.1
1.9.2
1.9.3
1.9.4
1.9.5
1.10.dev11
1.10.0
1.10.1
1.10.2
1.10.3
1.10.4
1.10.6
1.10.8
1.10.9
1.10.10
1.10.11
1.11.0
1.11.1
1.12.0
1.12.1
1.12.2
1.12.3
1.12.5.dev1
1.12.5
1.12.6.dev1
1.12.6.dev2
1.12.6.dev3
1.12.6.dev4
1.12.6.dev5
1.13.2
1.14.0.dev1
1.14.0
1.14.1
1.14.2
1.14.3
1.14.4
1.53.1.dev1
1.53.1
1.53.2
1.53.3
1.53.4
1.53.5
1.53.6
1.53.7
1.53.8
1.53.9
1.54.0
1.54.1
1.55.0
1.55.1
1.55.2
1.55.3
1.55.4
1.55.6
1.55.7
1.55.8
1.55.9
1.55.10
1.55.11
1.55.12
1.56.2
1.56.3
1.56.4
1.56.5
1.56.6
1.56.8.dev4
1.56.8.dev5
1.56.8.dev6
1.56.8.dev7
1.56.8
1.56.9
1.56.10
1.57.0
1.57.1
1.57.2
1.57.3
1.57.4
1.57.5
1.57.7.dev1
1.57.7
1.57.8
1.57.10
1.57.11
1.58.0
1.58.1
1.58.2
1.58.4
1.59.0
1.59.1.dev1
1.59.1
1.59.2
1.59.3
1.59.5
1.59.6
1.59.7
1.59.8
1.59.9
1.59.10.dev1
1.59.10
1.59.12
1.60.0
1.60.2
1.60.4
1.60.5
1.60.6
1.60.7
1.60.8
1.60.9
1.61.0.dev1
1.61.0
1.61.1
1.61.2
1.61.3
1.61.4
1.61.5
1.61.6
1.61.7
1.61.8
1.61.9
1.61.11
1.61.13
1.61.15
1.61.16
1.61.17
1.61.19
1.61.20
1.62.1
1.62.4
1.63.0.dev12
1.63.0
1.63.2
1.63.3
1.63.4.dev1
1.63.5
1.63.6
1.63.7
1.63.8
1.63.11.dev1
1.63.11
1.63.12
1.63.14
1.64.1
1.65.0
1.65.0.post1
1.65.1
1.65.3
1.65.4
1.65.4.post1
1.65.5
1.65.6
1.65.7
1.65.8
1.66.0
1.66.1
1.66.2
1.66.3
1.67.0
1.67.0.post1
1.67.1
1.67.2
1.67.4.dev1
1.67.4
1.67.4.post1
1.67.5
1.67.6
1.68.0
1.68.1.dev1
1.68.1
1.68.2
1.69.0
1.69.1
1.69.2
1.69.3
1.70.0
1.70.2
1.70.4
1.71.0
1.71.1
1.71.2
1.71.3
1.72.0
1.72.1
1.72.2
1.72.2.post1
1.72.3
1.72.4
1.72.5.dev1
1.72.5.dev2
1.72.5.dev3
1.72.6
1.72.6.post1
1.72.6.post2
1.72.7.dev1
1.72.7.dev7
1.72.7
1.72.9
1.73.0rc1
1.73.0
1.73.0.post1
1.73.1
1.73.2
1.73.6rc2
1.73.6
1.73.6.post1
1.73.7.dev1
1.73.7.dev2
1.73.7.dev3
1.73.7.dev4
1.73.7
1.74.0
1.74.0.post1
1.74.0.post2
1.74.1
1.74.2
1.74.3rc1
1.74.3rc2
1.74.3rc3
1.74.3
1.74.3.post1
1.74.4.dev1
1.74.4
1.74.6
1.74.7rc1
1.74.7
1.74.7.post1
1.74.7.post2
1.74.8.dev2
1.74.8
1.74.9.dev1
1.74.9.dev2
1.74.9
1.74.9.post1
1.74.9.post2
1.74.12
1.74.14
1.74.15
1.74.15.post1
1.74.15.post2
1.75.0
1.75.2
1.75.3
1.75.4
1.75.5.post1
1.75.5.post2
1.75.6
1.75.7
1.75.8
1.75.9
1.76.0
1.76.1
1.76.2
1.76.3
1.77.0
1.77.1
1.77.2.post1
1.77.3
1.77.4.dev1
1.77.4
1.77.5
1.77.7
1.78.0rc2
1.78.0
1.78.2
1.78.3
1.78.4
1.78.5
1.78.6
1.78.7
1.79.0.dev1
1.79.0.dev2
1.79.0.dev3
1.79.0
1.79.1
1.79.2
1.79.3.dev8
1.79.3
1.80.0
1.80.5
1.80.6
1.80.7
1.80.8
1.80.9
1.80.10
1.80.11
1.80.12
1.80.13
1.80.15
1.80.16
1.80.17
1.81.0
1.81.1
1.81.3
1.81.4
1.81.5
1.81.6
1.81.7
1.81.8
1.81.9.dev1
1.81.9
1.81.10
1.81.11
1.81.12
1.81.13
1.81.14
1.81.15
1.81.16
1.82.0
1.82.1
1.82.2
1.82.3
1.82.4
1.82.5
1.82.6
1.83.0
1.83.1
1.83.2
1.83.3
1.83.4
1.83.5
1.83.6
1.83.7
1.83.8

Database specific

last_known_affected_version_range 
"<= 1.83.8"
source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-hx8v-g79f-8w5f/GHSA-hx8v-g79f-8w5f.json"