CVE-2024-6854 json
Arbitrary File Overwrite in h2oai/h2o-3
published last yr. modified 4mo ago also GHSA-47f6-5p7h-5f3h , PYSEC-2026-1436 , EUVD-2025-6978
- cvss
- 7.1
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.8%
- EPSS 0.8% chance of exploitation in 30 days, percentile 56%
- public exploits
- 0
- none known
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.
Is CVE-2024-6854 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
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.78% chance of exploitation in the next 30 days, higher than 56% of all scored CVEs (FIRST EPSS, 2026-11-11).
Exploits and checks
- huntr.com https://huntr.com/bounties/97d013f9-ac51-4c80-8dd7-8dfde11f33b2 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.1 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |
| GitHub | 3.0 | 7.1 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |
| OSV | 3.0 | 7.1 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | h2o | >=3.32.1.1, <=3.46.0 |
no fix listed |
| maven | ai.h2o:h2o-core | >=3.32.1.1, <=3.46.0 |
no fix listed |
Affected products
- h2oai h2oai/h2o-3
Classification
- Weakness
-
- CWE-36 Absolute Path Traversal
References
-
huntr.com
/bounties/97d013f9-ac51-4c80-8dd7-8dfde11f33b2
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-6854
advisory
-
github.com
/h2oai/h2o-3
package
-
github.com
/h2oai/h2o-3/blob/a20b5b19b769866ee24b217ee78b820e64c1cd6a/h2o-core/src/main/java/hex/Model.java#L3366
web
-
pypi.org
/project/h2o
package
-
github.com
/advisories/GHSA-47f6-5p7h-5f3h
advisory
Sources
- CVE List CVE-2024-6854
- GitHub Advisory GHSA-47f6-5p7h-5f3h
- NVD CVE-2024-6854
- OSV PYSEC-2026-1436
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.