CVE-2024-8616 json
Arbitrary File Overwrite in h2oai/h2o-3
published last yr. modified 4mo ago also GHSA-g48v-3p35-88jr , PYSEC-2026-1441 , EUVD-2025-6902
- cvss
- 8.2
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 46%
- public exploits
- 0
- none known
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.
Is CVE-2024-8616 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.56% chance of exploitation in the next 30 days, higher than 46% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- huntr.com https://huntr.com/bounties/aebf69a5-b9b1-4d2f-a8ff-902c11a8c97a referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 8.2 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
| OSV | 3.0 | 8.2 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
| GitHub | 3.0 | 8.2 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | h2o | >=3.10.4.1, <=3.46.0 |
no fix listed |
| maven | ai.h2o:h2o-core | >=3.10.4.1, <=3.46.0 |
no fix listed |
Affected products
- h2oai h2oai/h2o-3
Classification
- Weakness
-
- CWE-73 External Control of File Name or Path
References
-
huntr.com
/bounties/aebf69a5-b9b1-4d2f-a8ff-902c11a8c97a
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-8616
advisory
-
github.com
/h2oai/h2o-3
package
-
github.com
/h2oai/h2o-3/blob/088190f9d0370a02a483fca68d8dc89c996b4f83/h2o-core/src/main/java/water/api/ModelsHandler.java
web
-
pypi.org
/project/h2o
package
-
github.com
/advisories/GHSA-g48v-3p35-88jr
advisory
Sources
- CVE List CVE-2024-8616
- GitHub Advisory GHSA-g48v-3p35-88jr
- NVD CVE-2024-8616
- OSV PYSEC-2026-1441
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.