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CVE-2025-10769 (GCVE-0-2025-10769)

Vulnerability from nvd – Published: 2025-09-21 09:33 – Updated: 2025-09-22 17:25

Title

h2oai h2o-3 H2 JDBC Driver ImportSQLTable deserialization

Summary

A vulnerability has been found in h2oai h2o-3 up to 3.46.08. This affects an unknown function of the file /99/ImportSQLTable of the component H2 JDBC Driver. Such manipulation of the argument connection_url leads to deserialization. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Severity ?

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

6.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

6.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

CWE

CWE-502 - Deserialization
CWE-20 - Improper Input Validation

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/?id.325125	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.325125	signaturepermissions-required
	https://vuldb.com/?submit.649728	third-party-advisory
	https://vuldb.com/?submit.649793	third-party-advisory
	https://github.com/ez-lbz/poc/issues/51	exploitissue-tracking
	https://github.com/ez-lbz/poc/issues/51#issue-339…	exploitissue-tracking
	https://huntr.com/bounties/4066ce21-7148-44f5-833…	related

Impacted products

	Vendor	Product	Version
	h2oai	h2o-3	Affected: 3.46.08

Credits

ez-lbz (VulDB User)

Show details on NVD website

JSON

To clipboard

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  "containers": {
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                "id": "CVE-2025-10769",
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CVE-2025-10768 (GCVE-0-2025-10768)

Vulnerability from nvd – Published: 2025-09-21 09:33 – Updated: 2025-09-22 17:24

Title

h2oai h2o-3 IBMDB2 JDBC Driver ImportSQLTable deserialization

Summary

A flaw has been found in h2oai h2o-3 up to 3.46.08. The impacted element is an unknown function of the file /99/ImportSQLTable of the component IBMDB2 JDBC Driver. This manipulation of the argument connection_url causes deserialization. The attack may be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Severity ?

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

6.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

6.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

CWE

CWE-502 - Deserialization
CWE-20 - Improper Input Validation

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/?id.325124	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.325124	signaturepermissions-required
	https://vuldb.com/?submit.649508	third-party-advisory
	https://github.com/ez-lbz/poc/issues/50	exploitissue-tracking
	https://github.com/ez-lbz/poc/issues/50#issue-338…	exploitissue-tracking

Impacted products

	Vendor	Product	Version
	h2oai	h2o-3	Affected: 3.46.08

Credits

ez-lbz (VulDB User)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
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                "id": "CVE-2025-10768",
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CVE-2025-6544 (GCVE-0-2025-6544)

Vulnerability from nvd – Published: 2025-09-21 09:00 – Updated: 2025-09-22 17:23

Title

Deserialization Vulnerability in h2oai/h2o-3

Summary

A deserialization vulnerability exists in h2oai/h2o-3 versions <= 3.46.0.8, allowing attackers to read arbitrary system files and execute arbitrary code. The vulnerability arises from improper handling of JDBC connection parameters, which can be exploited by bypassing regular expression checks and using double URL encoding. This issue impacts all users of the affected versions.

Severity ?

9.8 (Critical)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

@huntr_ai

References

URL

Tags

	https://huntr.com/bounties/53f35a0f-d644-4f82-93a…
	https://github.com/h2oai/h2o-3/commit/0298ee348f5…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , < 3.46.8 (custom)

Show details on NVD website

JSON

To clipboard

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}

CVE-2024-8616 (GCVE-0-2024-8616)

Vulnerability from nvd – Published: 2025-03-20 10:10 – Updated: 2025-03-20 18:23

Title

Arbitrary File Overwrite in h2oai/h2o-3

Summary

In h2oai/h2o-3 version 3.46.0, the `/99/Models/{name}/json` endpoint allows for arbitrary file overwrite on the target server. The vulnerability arises from the `exportModelDetails` function in `ModelsHandler.java`, where the user-controllable `mexport.dir` parameter is used to specify the file path for writing model details. This can lead to overwriting files at arbitrary locations on the host system.

Severity ?

8.2 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

CWE

CWE-73 - External Control of File Name or Path

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/aebf69a5-b9b1-4d2f-a8f…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-8062 (GCVE-0-2024-8062)

Vulnerability from nvd – Published: 2025-03-20 10:11 – Updated: 2025-03-20 15:23

Title

Denial of Service in h2oai/h2o-3

Summary

A vulnerability in the typeahead endpoint of h2oai/h2o-3 version 3.46.0 allows for a denial of service. The endpoint performs a `HEAD` request to verify the existence of a specified resource without setting a timeout. An attacker can exploit this by sending multiple requests to an attacker-controlled server that hangs, causing the application to block and become unresponsive to other requests.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1088 - Synchronous Access of Remote Resource without Timeout

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/a04190d9-4acb-449a-9a7…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-7768 (GCVE-0-2024-7768)

Vulnerability from nvd – Published: 2025-03-20 10:10 – Updated: 2025-10-15 12:49

Title

Denial of Service in h2oai/h2o-3

Summary

A vulnerability in the `/3/ImportFiles` endpoint of h2oai/h2o-3 version 3.46.1 allows an attacker to cause a denial of service. The endpoint takes a single GET parameter, `path`, which can be recursively set to reference itself. This leads the server to repeatedly call its own endpoint, eventually filling up the request queue and leaving the server unable to handle other requests.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/3fe640df-bef4-4072-889…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-7765 (GCVE-0-2024-7765)

Vulnerability from nvd – Published: 2025-03-20 10:08 – Updated: 2025-03-20 14:29

Title

Denial of Service in h2oai/h2o-3

Summary

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. The server becomes unresponsive due to memory exhaustion and a large number of concurrent slow-running jobs. This issue arises from the improper handling of highly compressed data, leading to significant data amplification.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/0e58b1a5-bdca-4e60-af9…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-6863 (GCVE-0-2024-6863)

Vulnerability from nvd – Published: 2025-03-20 10:10 – Updated: 2025-10-15 12:50

Title

Encryption of Arbitrary Files with Attacker-Controlled Key in h2oai/h2o-3

Summary

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. The chosen key can also be overwritten, resulting in ransomware-like behavior. This vulnerability makes it possible for an attacker to encrypt arbitrary files with keys of their choice, making it exceedingly difficult for the target to recover the keys needed for decryption.

Severity ?

6.5 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CWE

CWE-749 - Exposed Dangerous Method or Function

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/10f55937-0cba-4530-897…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-6854 (GCVE-0-2024-6854)

Vulnerability from nvd – Published: 2025-03-20 10:09 – Updated: 2025-03-20 18:32

Title

Arbitrary File Overwrite in h2oai/h2o-3

Summary

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. This vulnerability can be exploited to overwrite any file on the target server with a trained model file, although the content of the overwrite is not controllable by the attacker.

Severity ?

7.1 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

CWE

CWE-36 - Absolute Path Traversal

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/97d013f9-ac51-4c80-8dd…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-10572 (GCVE-0-2024-10572)

Vulnerability from nvd – Published: 2025-03-20 10:09 – Updated: 2025-10-15 12:49

Title

Denial of Service and Arbitrary File Write in h2oai/h2o-3

Summary

In h2oai/h2o-3 version 3.46.0.1, the `run_tool` command exposes classes in the `water.tools` package through the `ast` parser. This includes the `XGBoostLibExtractTool` class, which can be exploited to shut down the server and write large files to arbitrary directories, leading to a denial of service.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-94 - Improper Control of Generation of Code

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/db8939a0-9be8-4d0f-a8b…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-10553 (GCVE-0-2024-10553)

Vulnerability from nvd – Published: 2025-03-20 10:09 – Updated: 2025-03-20 18:58

Title

Jdbc Deserialization in h2oai/h2o-3

Summary

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. The vulnerability exists in the endpoints POST /99/ImportSQLTable and POST /3/SaveToHiveTable, where user-controlled JDBC URLs are passed to DriverManager.getConnection, leading to deserialization if a MySQL or PostgreSQL driver is available in the classpath. This issue is fixed in version 3.47.0.

Severity ?

9.8 (Critical)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

@huntr_ai

References

URL

Tags

	https://huntr.com/bounties/e6f550dd-eda2-428c-a74…
	https://github.com/h2oai/h2o-3/commit/ac1d642b4d8…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , < 3.47.0 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-10550 (GCVE-0-2024-10550)

Vulnerability from nvd – Published: 2025-03-20 10:10 – Updated: 2025-03-20 18:30

Title

Denial of Service by ReDOS in h2oai/h2o-3

Summary

A vulnerability in the `/3/ParseSetup` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack. The endpoint applies a user-specified regular expression to a user-controllable string. This can be exploited by an attacker to cause inefficient regular expression complexity, leading to the exhaustion of server resources and making the server unresponsive.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/ef3f4d89-3b8b-4618-b13…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-10549 (GCVE-0-2024-10549)

Vulnerability from nvd – Published: 2025-03-20 10:11 – Updated: 2025-10-15 12:49

Title

Denial of Service by ReDOS in h2oai/h2o-3

Summary

A vulnerability in the `/3/Parse` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack. The endpoint uses a user-specified string to construct a regular expression, which is then applied to another user-specified string. By sending multiple simultaneous requests, an attacker can exhaust all available threads, leading to a complete denial of service.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/ce7bd2d6-fd38-440d-a91…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-45403 (GCVE-0-2024-45403)

Vulnerability from nvd – Published: 2024-10-11 14:28 – Updated: 2024-10-11 14:40

Title

H2O assertion failure when HTTP/3 requests are cancelled

Summary

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When h2o is configured as a reverse proxy and HTTP/3 requests are cancelled by the client, h2o might crash due to an assertion failure. The crash can be exploited by an attacker to mount a Denial-of-Service attack. By default, the h2o standalone server automatically restarts, minimizing the impact. However, HTTP requests that were served concurrently will still be disrupted. The vulnerability has been addressed in commit 1ed32b2. Users may disable the use of HTTP/3 to mitigate the issue.

Severity ?

3.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-617 - Reachable Assertion

Assigner

GitHub_M

References

URL

Tags

	https://github.com/h2o/h2o/security/advisories/GH…	x_refsource_CONFIRM
	https://github.com/h2o/h2o/commit/16b13eee8ad7895…	x_refsource_MISC
	https://github.com/h2o/h2o/commit/1ed32b23f999acf…	x_refsource_MISC
	https://h2o.examp1e.net/configure/http3_directives.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	h2o	h2o	Affected: >= 16b13eee8ad7895b4fe3fcbcabee53bd52782562, < 1ed32b23f999acf0c5029f09c8525f93eb1d354c

Show details on NVD website

JSON

To clipboard

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CVE-2024-45397 (GCVE-0-2024-45397)

Vulnerability from nvd – Published: 2024-10-11 14:24 – Updated: 2024-10-11 14:42

Title

H2O alllows bypassing address-based access control with 0-RTT

Summary

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When an HTTP request using TLS/1.3 early data on top of TCP Fast Open or QUIC 0-RTT packets is received and the IP-address-based access control is used, the access control does not detect and prohibit HTTP requests conveyed by packets with a spoofed source address. This behavior allows attackers on the network to execute HTTP requests from addresses that are otherwise rejected by the address-based access control. The vulnerability has been addressed in commit 15ed15a. Users may disable the use of TCP FastOpen and QUIC to mitigate the issue.

Severity ?

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-284 - Improper Access Control

Assigner

GitHub_M

References

URL

Tags

	https://github.com/h2o/h2o/security/advisories/GH…	x_refsource_CONFIRM
	https://github.com/h2o/h2o/commit/15ed15a2efb83a7…	x_refsource_MISC
	https://h2o.examp1e.net/configure/http3_directives.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	h2o	h2o	Affected: < 15ed15a2efb83a77bb4baaa5a119e639c2f6898a

Show details on NVD website

JSON

To clipboard

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CVE-2024-25622 (GCVE-0-2024-25622)

Vulnerability from nvd – Published: 2024-10-11 14:20 – Updated: 2024-10-11 14:46

Title

H2O ignores headers configuration directives

Summary

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. The configuration directives provided by the headers handler allows users to modify the response headers being sent by h2o. The configuration file of h2o has scopes, and the inner scopes (e.g., path level) are expected to inherit the configuration defined in outer scopes (e.g., global level). However, if a header directive is used in the inner scope, all the definition in outer scopes are ignored. This can lead to headers not being modified as expected. Depending on the headers being added or removed unexpectedly, this behavior could lead to unexpected client behavior. This vulnerability is fixed in commit 123f5e2b65dcdba8f7ef659a00d24bd1249141be.

Severity ?

3.1 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

CWE

CWE-670 - Always-Incorrect Control Flow Implementation

Assigner

GitHub_M

References

URL

Tags

	https://github.com/h2o/h2o/security/advisories/GH…	x_refsource_CONFIRM
	https://github.com/h2o/h2o/issues/3332	x_refsource_MISC
	https://github.com/h2o/h2o/commit/123f5e2b65dcdba…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	h2o	h2o	Affected: < 123f5e2b65dcdba8f7ef659a00d24bd1249141be

Show details on NVD website

JSON

To clipboard

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CVE-2025-10769 (GCVE-0-2025-10769)

Vulnerability from cvelistv5 – Published: 2025-09-21 09:33 – Updated: 2025-09-22 17:25

Title

h2oai h2o-3 H2 JDBC Driver ImportSQLTable deserialization

Summary

A vulnerability has been found in h2oai h2o-3 up to 3.46.08. This affects an unknown function of the file /99/ImportSQLTable of the component H2 JDBC Driver. Such manipulation of the argument connection_url leads to deserialization. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Severity ?

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

6.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

6.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

CWE

CWE-502 - Deserialization
CWE-20 - Improper Input Validation

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/?id.325125	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.325125	signaturepermissions-required
	https://vuldb.com/?submit.649728	third-party-advisory
	https://vuldb.com/?submit.649793	third-party-advisory
	https://github.com/ez-lbz/poc/issues/51	exploitissue-tracking
	https://github.com/ez-lbz/poc/issues/51#issue-339…	exploitissue-tracking
	https://huntr.com/bounties/4066ce21-7148-44f5-833…	related

Impacted products

	Vendor	Product	Version
	h2oai	h2o-3	Affected: 3.46.08

Credits

ez-lbz (VulDB User)

Show details on NVD website

JSON

To clipboard

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        "title": "CISA ADP Vulnrichment"
      }
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        }
      ],
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CVE-2025-10768 (GCVE-0-2025-10768)

Vulnerability from cvelistv5 – Published: 2025-09-21 09:33 – Updated: 2025-09-22 17:24

Title

h2oai h2o-3 IBMDB2 JDBC Driver ImportSQLTable deserialization

Summary

A flaw has been found in h2oai h2o-3 up to 3.46.08. The impacted element is an unknown function of the file /99/ImportSQLTable of the component IBMDB2 JDBC Driver. This manipulation of the argument connection_url causes deserialization. The attack may be initiated remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Severity ?

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

6.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

6.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

CWE

CWE-502 - Deserialization
CWE-20 - Improper Input Validation

Assigner

VulDB

References

URL

Tags

	https://vuldb.com/?id.325124	vdb-entrytechnical-description
	https://vuldb.com/?ctiid.325124	signaturepermissions-required
	https://vuldb.com/?submit.649508	third-party-advisory
	https://github.com/ez-lbz/poc/issues/50	exploitissue-tracking
	https://github.com/ez-lbz/poc/issues/50#issue-338…	exploitissue-tracking

Impacted products

	Vendor	Product	Version
	h2oai	h2o-3	Affected: 3.46.08

Credits

ez-lbz (VulDB User)

Show details on NVD website

JSON

To clipboard

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CVE-2025-6544 (GCVE-0-2025-6544)

Vulnerability from cvelistv5 – Published: 2025-09-21 09:00 – Updated: 2025-09-22 17:23

Title

Deserialization Vulnerability in h2oai/h2o-3

Summary

A deserialization vulnerability exists in h2oai/h2o-3 versions <= 3.46.0.8, allowing attackers to read arbitrary system files and execute arbitrary code. The vulnerability arises from improper handling of JDBC connection parameters, which can be exploited by bypassing regular expression checks and using double URL encoding. This issue impacts all users of the affected versions.

Severity ?

9.8 (Critical)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

@huntr_ai

References

URL

Tags

	https://huntr.com/bounties/53f35a0f-d644-4f82-93a…
	https://github.com/h2oai/h2o-3/commit/0298ee348f5…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , < 3.46.8 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-10549 (GCVE-0-2024-10549)

Vulnerability from cvelistv5 – Published: 2025-03-20 10:11 – Updated: 2025-10-15 12:49

Title

Denial of Service by ReDOS in h2oai/h2o-3

Summary

A vulnerability in the `/3/Parse` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack. The endpoint uses a user-specified string to construct a regular expression, which is then applied to another user-specified string. By sending multiple simultaneous requests, an attacker can exhaust all available threads, leading to a complete denial of service.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/ce7bd2d6-fd38-440d-a91…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-8062 (GCVE-0-2024-8062)

Vulnerability from cvelistv5 – Published: 2025-03-20 10:11 – Updated: 2025-03-20 15:23

Title

Denial of Service in h2oai/h2o-3

Summary

A vulnerability in the typeahead endpoint of h2oai/h2o-3 version 3.46.0 allows for a denial of service. The endpoint performs a `HEAD` request to verify the existence of a specified resource without setting a timeout. An attacker can exploit this by sending multiple requests to an attacker-controlled server that hangs, causing the application to block and become unresponsive to other requests.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1088 - Synchronous Access of Remote Resource without Timeout

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/a04190d9-4acb-449a-9a7…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-7768 (GCVE-0-2024-7768)

Vulnerability from cvelistv5 – Published: 2025-03-20 10:10 – Updated: 2025-10-15 12:49

Title

Denial of Service in h2oai/h2o-3

Summary

A vulnerability in the `/3/ImportFiles` endpoint of h2oai/h2o-3 version 3.46.1 allows an attacker to cause a denial of service. The endpoint takes a single GET parameter, `path`, which can be recursively set to reference itself. This leads the server to repeatedly call its own endpoint, eventually filling up the request queue and leaving the server unable to handle other requests.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/3fe640df-bef4-4072-889…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-6863 (GCVE-0-2024-6863)

Vulnerability from cvelistv5 – Published: 2025-03-20 10:10 – Updated: 2025-10-15 12:50

Title

Encryption of Arbitrary Files with Attacker-Controlled Key in h2oai/h2o-3

Summary

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. The chosen key can also be overwritten, resulting in ransomware-like behavior. This vulnerability makes it possible for an attacker to encrypt arbitrary files with keys of their choice, making it exceedingly difficult for the target to recover the keys needed for decryption.

Severity ?

6.5 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

CWE

CWE-749 - Exposed Dangerous Method or Function

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/10f55937-0cba-4530-897…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-8616 (GCVE-0-2024-8616)

Vulnerability from cvelistv5 – Published: 2025-03-20 10:10 – Updated: 2025-03-20 18:23

Title

Arbitrary File Overwrite in h2oai/h2o-3

Summary

In h2oai/h2o-3 version 3.46.0, the `/99/Models/{name}/json` endpoint allows for arbitrary file overwrite on the target server. The vulnerability arises from the `exportModelDetails` function in `ModelsHandler.java`, where the user-controllable `mexport.dir` parameter is used to specify the file path for writing model details. This can lead to overwriting files at arbitrary locations on the host system.

Severity ?

8.2 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

CWE

CWE-73 - External Control of File Name or Path

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/aebf69a5-b9b1-4d2f-a8f…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-10550 (GCVE-0-2024-10550)

Vulnerability from cvelistv5 – Published: 2025-03-20 10:10 – Updated: 2025-03-20 18:30

Title

Denial of Service by ReDOS in h2oai/h2o-3

Summary

A vulnerability in the `/3/ParseSetup` endpoint of h2oai/h2o-3 version 3.46.0.1 allows for a denial of service (DoS) attack. The endpoint applies a user-specified regular expression to a user-controllable string. This can be exploited by an attacker to cause inefficient regular expression complexity, leading to the exhaustion of server resources and making the server unresponsive.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1333 - Inefficient Regular Expression Complexity

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/ef3f4d89-3b8b-4618-b13…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-6854 (GCVE-0-2024-6854)

Vulnerability from cvelistv5 – Published: 2025-03-20 10:09 – Updated: 2025-03-20 18:32

Title

Arbitrary File Overwrite in h2oai/h2o-3

Summary

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. This vulnerability can be exploited to overwrite any file on the target server with a trained model file, although the content of the overwrite is not controllable by the attacker.

Severity ?

7.1 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

CWE

CWE-36 - Absolute Path Traversal

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/97d013f9-ac51-4c80-8dd…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-10572 (GCVE-0-2024-10572)

Vulnerability from cvelistv5 – Published: 2025-03-20 10:09 – Updated: 2025-10-15 12:49

Title

Denial of Service and Arbitrary File Write in h2oai/h2o-3

Summary

In h2oai/h2o-3 version 3.46.0.1, the `run_tool` command exposes classes in the `water.tools` package through the `ast` parser. This includes the `XGBoostLibExtractTool` class, which can be exploited to shut down the server and write large files to arbitrary directories, leading to a denial of service.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-94 - Improper Control of Generation of Code

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/db8939a0-9be8-4d0f-a8b…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-10553 (GCVE-0-2024-10553)

Vulnerability from cvelistv5 – Published: 2025-03-20 10:09 – Updated: 2025-03-20 18:58

Title

Jdbc Deserialization in h2oai/h2o-3

Summary

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. The vulnerability exists in the endpoints POST /99/ImportSQLTable and POST /3/SaveToHiveTable, where user-controlled JDBC URLs are passed to DriverManager.getConnection, leading to deserialization if a MySQL or PostgreSQL driver is available in the classpath. This issue is fixed in version 3.47.0.

Severity ?

9.8 (Critical)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-502 - Deserialization of Untrusted Data

Assigner

@huntr_ai

References

URL

Tags

	https://huntr.com/bounties/e6f550dd-eda2-428c-a74…
	https://github.com/h2oai/h2o-3/commit/ac1d642b4d8…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , < 3.47.0 (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-7765 (GCVE-0-2024-7765)

Vulnerability from cvelistv5 – Published: 2025-03-20 10:08 – Updated: 2025-03-20 14:29

Title

Denial of Service in h2oai/h2o-3

Summary

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. The server becomes unresponsive due to memory exhaustion and a large number of concurrent slow-running jobs. This issue arises from the improper handling of highly compressed data, leading to significant data amplification.

Severity ?

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)

Assigner

@huntr_ai

References

URL

Tags

https://huntr.com/bounties/0e58b1a5-bdca-4e60-af9…

Impacted products

	Vendor	Product	Version
	h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)

Show details on NVD website

JSON

To clipboard

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CVE-2024-45403 (GCVE-0-2024-45403)

Vulnerability from cvelistv5 – Published: 2024-10-11 14:28 – Updated: 2024-10-11 14:40

Title

H2O assertion failure when HTTP/3 requests are cancelled

Summary

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When h2o is configured as a reverse proxy and HTTP/3 requests are cancelled by the client, h2o might crash due to an assertion failure. The crash can be exploited by an attacker to mount a Denial-of-Service attack. By default, the h2o standalone server automatically restarts, minimizing the impact. However, HTTP requests that were served concurrently will still be disrupted. The vulnerability has been addressed in commit 1ed32b2. Users may disable the use of HTTP/3 to mitigate the issue.

Severity ?

3.7 (Low)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE

CWE-617 - Reachable Assertion

Assigner

GitHub_M

References

URL

Tags

	https://github.com/h2o/h2o/security/advisories/GH…	x_refsource_CONFIRM
	https://github.com/h2o/h2o/commit/16b13eee8ad7895…	x_refsource_MISC
	https://github.com/h2o/h2o/commit/1ed32b23f999acf…	x_refsource_MISC
	https://h2o.examp1e.net/configure/http3_directives.html	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	h2o	h2o	Affected: >= 16b13eee8ad7895b4fe3fcbcabee53bd52782562, < 1ed32b23f999acf0c5029f09c8525f93eb1d354c

Show details on NVD website

JSON

To clipboard

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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-11T14:40:44.124164Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-11T14:40:53.132Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "h2o",
          "vendor": "h2o",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 16b13eee8ad7895b4fe3fcbcabee53bd52782562, \u003c 1ed32b23f999acf0c5029f09c8525f93eb1d354c"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When h2o is configured as a reverse proxy and HTTP/3 requests are cancelled by the client, h2o might crash due to an assertion failure. The crash can be exploited by an attacker to mount a Denial-of-Service attack. By default, the h2o standalone server automatically restarts, minimizing the impact. However, HTTP requests that were served concurrently will still be disrupted. The vulnerability has been addressed in commit 1ed32b2. Users may disable the use of HTTP/3 to mitigate the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 3.7,
            "baseSeverity": "LOW",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-617",
              "description": "CWE-617: Reachable Assertion",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-10-11T14:28:35.262Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/h2o/h2o/security/advisories/GHSA-4xp5-3jhc-3m92",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/h2o/h2o/security/advisories/GHSA-4xp5-3jhc-3m92"
        },
        {
          "name": "https://github.com/h2o/h2o/commit/16b13eee8ad7895b4fe3fcbcabee53bd52782562",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/h2o/h2o/commit/16b13eee8ad7895b4fe3fcbcabee53bd52782562"
        },
        {
          "name": "https://github.com/h2o/h2o/commit/1ed32b23f999acf0c5029f09c8525f93eb1d354c",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/h2o/h2o/commit/1ed32b23f999acf0c5029f09c8525f93eb1d354c"
        },
        {
          "name": "https://h2o.examp1e.net/configure/http3_directives.html",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://h2o.examp1e.net/configure/http3_directives.html"
        }
      ],
      "source": {
        "advisory": "GHSA-4xp5-3jhc-3m92",
        "discovery": "UNKNOWN"
      },
      "title": "H2O assertion failure when HTTP/3 requests are cancelled"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-45403",
    "datePublished": "2024-10-11T14:28:35.262Z",
    "dateReserved": "2024-08-28T20:21:32.803Z",
    "dateUpdated": "2024-10-11T14:40:53.132Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Search criteria

60 vulnerabilities found for h2o by h2o

CVE-2025-10769 (GCVE-0-2025-10769)

CVE-2025-10768 (GCVE-0-2025-10768)

CVE-2025-6544 (GCVE-0-2025-6544)

CVE-2024-8616 (GCVE-0-2024-8616)

CVE-2024-8062 (GCVE-0-2024-8062)

CVE-2024-7768 (GCVE-0-2024-7768)

CVE-2024-7765 (GCVE-0-2024-7765)

CVE-2024-6863 (GCVE-0-2024-6863)

CVE-2024-6854 (GCVE-0-2024-6854)

CVE-2024-10572 (GCVE-0-2024-10572)

CVE-2024-10553 (GCVE-0-2024-10553)

CVE-2024-10550 (GCVE-0-2024-10550)

CVE-2024-10549 (GCVE-0-2024-10549)

CVE-2024-45403 (GCVE-0-2024-45403)

CVE-2024-45397 (GCVE-0-2024-45397)

CVE-2024-25622 (GCVE-0-2024-25622)

CVE-2025-10769 (GCVE-0-2025-10769)

CVE-2025-10768 (GCVE-0-2025-10768)

CVE-2025-6544 (GCVE-0-2025-6544)

CVE-2024-10549 (GCVE-0-2024-10549)

CVE-2024-8062 (GCVE-0-2024-8062)

CVE-2024-7768 (GCVE-0-2024-7768)

CVE-2024-6863 (GCVE-0-2024-6863)

CVE-2024-8616 (GCVE-0-2024-8616)

CVE-2024-10550 (GCVE-0-2024-10550)

CVE-2024-6854 (GCVE-0-2024-6854)

CVE-2024-10572 (GCVE-0-2024-10572)

CVE-2024-10553 (GCVE-0-2024-10553)

CVE-2024-7765 (GCVE-0-2024-7765)

CVE-2024-45403 (GCVE-0-2024-45403)