CVE-2024-10550 json
Denial of Service by ReDOS in h2oai/h2o-3
published last yr. modified 4mo ago also GHSA-7qq7-pvm9-x8rf , PYSEC-2026-1440 , EUVD-2025-7113
- cvss
- 7.5
- 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 51%
- public exploits
- 0
- none known
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.
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Check with FencerCISA SSVC
- Exploitation
- Proof of concept is public
- Automatable
- yes
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.64% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-15).
Exploits and checks
- huntr.com https://huntr.com/bounties/ef3f4d89-3b8b-4618-b134-cb93c1664ec6 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| OSV | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | h2o | >=3.30.0.7, <=3.46.0.1 |
no fix listed |
| maven | ai.h2o:h2o-core | >=3.30.0.7, <=3.46.0.1 |
no fix listed |
Affected products
- h2oai h2oai/h2o-3
Classification
- Weakness
-
- CWE-1333 Inefficient Regular Expression Complexity
References
-
huntr.com
/bounties/ef3f4d89-3b8b-4618-b134-cb93c1664ec6
web, exploit, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-10550
advisory
-
github.com
/h2oai/h2o-3
package
-
github.com
/h2oai/h2o-3/blob/51c25940ded8b7d0acc8f3f72329fd9dedbb3a34/h2o-core/src/main/java/water/api/ParseSetupHandler.
web
-
pypi.org
/project/h2o
package
-
github.com
/advisories/GHSA-7qq7-pvm9-x8rf
advisory
Sources
- CVE List CVE-2024-10550
- GitHub Advisory GHSA-7qq7-pvm9-x8rf
- NVD CVE-2024-10550
- OSV PYSEC-2026-1440
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.