High severity · published Mar 20, 2025
CVE-2024-10549
Denial of Service by ReDOS in h2oai/h2o-3
7.5
CVSS
0.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 50% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
H2
h2oai/h2o-3 · h2oai
through latest · source: vendor
H2
H2o · H2o
3.46.0.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-10549
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-10549
Exploit
https://huntr.com/bounties/ce7bd2d6-fd38-440d-a91a-dd8f3fc06bc2
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