CVE-2024-10549: Denial of Service by ReDOS in h2oai/h2o-3
First published: Thu Mar 20 2025(Updated: )
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.
Credit: security@huntr.dev
| Affected Software | Affected Version | How to fix |
|---|---|---|
| H2O-3 | ||
| maven/ai.h2o:h2o-core | >=3.30.0.7<=3.46.0.1 | |
| pip/h2o | >=3.30.0.7<=3.46.0.1 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://huntr.com/bounties/ce7bd2d6-fd38-440d-a91a-dd8f3fc06bc2
- https://nvd.nist.gov/vuln/detail/CVE-2024-10549
- https://github.com/h2oai/h2o-3/blob/51c25940ded8b7d0acc8f3f72329fd9dedbb3a34/h2o-core/src/main/java/water/api/ParseHandler.java#L80
- https://github.com/advisories/GHSA-wwr9-4gmr-xvq9 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2024-10549?
CVE-2024-10549 is considered a high-severity vulnerability due to its potential for causing denial of service (DoS) attacks.
How do I fix CVE-2024-10549?
To fix CVE-2024-10549, update to the latest version of h2oai/h2o-3 that addresses this vulnerability.
What is the impact of CVE-2024-10549?
CVE-2024-10549 can lead to denial of service, making the application unresponsive to legitimate requests.
Which versions of H2O-3 are affected by CVE-2024-10549?
CVE-2024-10549 affects H2O-3 version 3.46.0.1 and potentially earlier versions.
How does CVE-2024-10549 allow for a denial of service?
CVE-2024-10549 allows a denial of service by exploiting the `/3/Parse` endpoint, which improperly handles user-specified strings for regular expression construction.
- agent/title
- agent/weakness
- agent/type
- agent/first-publish-date
- agent/description
- agent/guess-ai
- agent/software-canonical-lookup
- collector/nvd-api
- source/NVD
- agent/author
- agent/severity
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-wwr9-4gmr-xvq9
- alias/CVE-2024-10549
- agent/last-modified-date
- agent/references
- agent/source
- agent/softwarecombine
- collector/nvd-cve
- agent/tags
- collector/mitre-cve
- source/MITRE
- collector/github-advisory
- agent/event
- vendor/h2oai
- canonical/h2o-3
- package-manager/maven
- package-manager/pip