H2
Product
h2o
by h2o · last CVE Jul 16, 2026
31
CVEs
0
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 9High 17Medium 5Low 0
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-8751
9.8
0%
May 17
h2oai h2o-3 JAR Model.java importBinaryModel deserialization
Affected: through 7402
CVE-2026-3960
9.8
1%
Apr 23
Remote Code Execution in h2oai/h2o-3
Affected: before 3.46.0.10
CVE-2025-10769
9.8
1%
Sep 21
h2oai h2o-3 H2 JDBC Driver ImportSQLTable deserialization
Affected: 3.0.0.2 through 3.46.0.8
CVE-2025-10768
9.8
0%
Sep 21
h2oai h2o-3 IBMDB2 JDBC Driver ImportSQLTable deserialization
Affected: 3.0.0.2 through 3.46.0.8
CVE-2025-6544
9.8
1%
Sep 21
Deserialization Vulnerability in h2oai/h2o-3
Affected: 3.0.0.2 through 3.46.0.8
CVE-2024-10553
9.8
2%
Mar 20
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
Affected: 3.46.0.4
CVE-2024-8862
9.8
1%
Sep 14
A vulnerability, which was classified as critical, has been found in h2oai h2o-3 3.46.0.4
Affected: 3.46.0.4
CVE-2023-6016
9.8
31%
Nov 16
An attacker is able to gain remote code execution on a server hosting the H2O dashboard through it's POJO model import feature
Affected: All versions, or not specified
CVE-2024-45758
9.1
1%
Sep 6
H2O.ai H2O through 3.46.0.4 allows attackers to arbitrarily set the JDBC URL, leading to deserialization attacks, file reads, and command execution
Affected: through 3.46.0.4
CVE-2024-8616
8.2
1%
Mar 20
In h2oai/h2o-3 version 3.46.0, the `/99/Models/{name}/json` endpoint allows for arbitrary file overwrite on the target server
Affected: 3.46.0
CVE-2023-6569
8.2
1%
Dec 14
External Control of File Name or Path in h2oai/h2o-3
Affected: 3.40.0.4
CVE-2026-54340
7.5
0%
Jul 16
h2o has HTTP/2 state amplification
Affected: < 9265bdd
CVE-2026-44453
7.5
0%
Jul 16
h2o is vulnerable to musl libc stack overflow
Affected: < 6b5370d
CVE-2026-55213
7.5
0%
Jul 10
h2o: musl libc stack overflow (QPACK)
Affected: < edd7a120bfc4af11ac0cbebce2a43cc1f93f9af1
CVE-2026-8750
7.5
0%
May 17
h2oai h2o-3 ImportFile API PersistNFS.java importFiles information disclosure
Affected: through 7402
CVE-2024-8062
7.5
0%
Mar 20
A vulnerability in the typeahead endpoint of h2oai/h2o-3 version 3.46.0 allows for a denial of service
Affected: 3.46.0
CVE-2024-7768
7.5
1%
Mar 20
A vulnerability in the `/3/ImportFiles` endpoint of h2oai/h2o-3 version 3.46.1 allows an attacker to cause a denial of service
Affected: 3.46.1
CVE-2024-7765
7.5
1%
Mar 20
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
Affected: 3.46.0.2
CVE-2024-10572
7.5
1%
Mar 20
In h2oai/h2o-3 version 3.46.0.1, the `run_tool` command exposes classes in the `water.tools` package through the `ast` parser
Affected: 3.46.0.1
CVE-2024-10550
7.5
1%
Mar 20
A vulnerability in the `/3/ParseSetup` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack
Affected: 3.46.0.1
CVE-2024-10549
7.5
1%
Mar 20
A vulnerability in the `/3/Parse` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack
Affected: 3.46.0.1
CVE-2024-5979
7.5
1%
Jun 27
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
Affected: 3.46.0
CVE-2023-6038
7.5
4%
Nov 16
A Local File Inclusion (LFI) vulnerability exists in the h2o-3 REST API, allowing unauthenticated remote attackers to read arbitrary files on the server with the permissions of…
Affected: All versions, or not specified
CVE-2024-6854
7.1
1%
Mar 20
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…
Affected: 3.46.0
CVE-2024-1456
7.1
0%
Apr 16
An S3 bucket takeover vulnerability was identified in the h2oai/h2o-3 repository
Affected: 3.45.0.6386
CVE-2023-6017
7.1
1%
Nov 16
H2O included a reference to an S3 bucket that no longer existed allowing an attacker to take over the S3 bucket URL
Affected: All versions, or not specified
CVE-2024-6863
6.5
0%
Mar 20
In h2oai/h2o-3 version 3.46.0, an endpoint exposing a custom EncryptionTool allows an attacker to encrypt any files on the target server with a key of their choosing
Affected: 3.46.0
CVE-2026-44452
5.9
0%
Jul 16
h2o is vulnerable to heap overrun
Affected: < 8dc37cb
CVE-2023-6013
5.4
1%
Nov 16
H2O is vulnerable to stored XSS vulnerability which can lead to a Local File Include attack
Affected: All versions, or not specified
CVE-2026-8752
5.3
0%
May 17
h2oai h2o-3 Rapids setproperty Primitive AstSetProperty.java exec access control
Affected: through 7402
CVE-2024-5550
5.3
1%
Jun 6
In h2oai/h2o-3 version 3.40.0.4, an exposure of sensitive information vulnerability exists due to an arbitrary system path lookup feature
Affected: 3.40.0.4
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