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30 records

Priority LOW 39

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00493 Published 2026-07-16 Fixed in 9265bdd CWE-400
Priority LOW 27

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3.

CVSS 3.1MEDIUM 5.9 Network No auth No interaction EPSS 0.00412 Published 2026-07-16 Fixed in 8dc37cb CWE-125
TI-2026-03424 CVE-2026-3960 · GHSA-qmcv-hh7c-3m56

Remote Code Execution in h2oai/h2o-3

Priority HIGH 75

A critical remote code execution vulnerability exists in the unauthenticated REST API endpoint /99/ImportSQLTable in H2O-3 version 3.46.0.9 and prior.

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00938 Published 2026-04-23 Fixed in 3.46.0.10 CWE-94
Priority HIGH 82

A deserialization vulnerability exists in h2oai/h2o-3 versions <= 3.46.0.8, allowing attackers to read arbitrary system files and execute arbitrary code.

CVSS 3.0CRITICAL 9.8 Network No auth No interaction EPSS 0.00952 Published 2025-09-21 Fixed in 3.46.8 CWE-502
TI-2024-09772 CVE-2024-10549 · GHSA-wwr9-4gmr-xvq9

Denial of Service by ReDOS in h2oai/h2o-3

Priority HIGH 72

A vulnerability in the `/3/Parse` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack.

CVSS 3.0HIGH 7.5 Network No auth No interaction EPSS 0.00637 Published 2025-03-20 No fix listed CWE-1333
TI-2024-07475 CVE-2024-8062 · GHSA-5c8j-g96x-cj78

Denial of Service in h2oai/h2o-3

Priority HIGH 72

A vulnerability in the typeahead endpoint of h2oai/h2o-3 version 3.46.0 allows for a denial of service.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00482 Published 2025-03-20 No fix listed CWE-1088
TI-2024-07202 CVE-2024-7768 · GHSA-p2vc-m5fv-9w9m

Denial of Service in h2oai/h2o-3

Priority HIGH 72

A vulnerability in the `/3/ImportFiles` endpoint of h2oai/h2o-3 version 3.46.1 allows an attacker to cause a denial of service.

CVSS 3.0HIGH 7.5 Network No auth No interaction EPSS 0.00788 Published 2025-03-20 No fix listed CWE-770
TI-2024-07992 CVE-2024-8616 · GHSA-g48v-3p35-88jr

Arbitrary File Overwrite in h2oai/h2o-3

Priority HIGH 75

In h2oai/h2o-3 version 3.46.0, the `/99/Models/{name}/json` endpoint allows for arbitrary file overwrite on the target server.

CVSS 3.0HIGH 8.2 Network No auth No interaction EPSS 0.00557 Published 2025-03-20 No fix listed CWE-73
TI-2024-09773 CVE-2024-10550 · GHSA-7qq7-pvm9-x8rf

Denial of Service by ReDOS in h2oai/h2o-3

Priority HIGH 72

A vulnerability in the `/3/ParseSetup` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack.

CVSS 3.0HIGH 7.5 Network No auth No interaction EPSS 0.00637 Published 2025-03-20 No fix listed CWE-1333
TI-2024-06356 CVE-2024-6854 · GHSA-47f6-5p7h-5f3h

Arbitrary File Overwrite in h2oai/h2o-3

Priority MEDIUM 64

In h2oai/h2o-3 version 3.46.0, the endpoint for exporting models does not restrict the export location, allowing an attacker to export a model to any file in the server's file structure, thereby overwriting it.

CVSS 3.0HIGH 7.1 Network Low privileges No interaction EPSS 0.00776 Published 2025-03-20 No fix listed CWE-36
Priority HIGH 72

In h2oai/h2o-3 version 3.46.0.1, the `run_tool` command exposes classes in the `water.tools` package through the `ast` parser.

CVSS 3.0HIGH 7.5 Network No auth No interaction EPSS 0.00688 Published 2025-03-20 No fix listed CWE-94
TI-2024-09776 CVE-2024-10553 · GHSA-h7xg-cmpp-48hf

Jdbc Deserialization in h2oai/h2o-3

Priority HIGH 82

A vulnerability in the h2oai/h2o-3 REST API versions 3.46.0.4 allows unauthenticated remote attackers to execute arbitrary code via deserialization of untrusted data.

CVSS 3.0CRITICAL 9.8 Network No auth No interaction EPSS 0.01587 Published 2025-03-20 Fixed in 3.47.0, 3.46.0.6 CWE-502
TI-2024-07199 CVE-2024-7765 · GHSA-6w62-3jvj-mfj6

Denial of Service in h2oai/h2o-3

Priority HIGH 72

In h2oai/h2o-3 version 3.46.0.2, a vulnerability exists where uploading and repeatedly parsing a large GZIP file can cause a denial of service.

CVSS 3.1HIGH 7.5 Network No auth No interaction EPSS 0.00779 Published 2025-03-20 No fix listed CWE-409
Priority HIGH 66

In h2oai/h2o-3 version 3.46.0, the `run_tool` command in the `rapids` component allows the `main` function of any class under the `water.tools` namespace to be called.

CVSS 3.0HIGH 7.5 Network No auth No interaction EPSS 0.00794 Published 2024-06-27 Fixed in 3.46.0.6 CWE-94
TI-2024-01360 CVE-2024-1456 · GHSA-9vwm-6vm6-ffwv

S3 Bucket Takeover in h2oai/h2o-3

Priority HIGH 66

An S3 bucket takeover vulnerability was identified in the h2oai/h2o-3 repository.

CVSS 3.0HIGH 7.1 Local No auth User interaction EPSS 0.00243 Published 2024-04-16 No fix listed CWE-840
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