CVE-2024-10550

highpriority · track · 0EPSS 0.006 · 50 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.64% (50th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · osv · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · security@huntr.devexploitability 3.9 · impact 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · OSV

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1333USCWE-1333US

affected products (4)

Products and version ranges known to be affected.

h2oai h2oai/h2o-3≤ unspecified ≤latestenisa_euvdEU
h2o h2o= 3.46.0.1nvdUScpe:2.3:a:h2o:h2o:*:*:*:*:*:*:*:*
Maven ai.h2o:h2o-core3.30.0.7 → 3.46.0.1osvUSpkg:maven/ai.h2o/h2o-core
PyPI h2o3.30.0.7 → 3.46.0.1osvUSpkg:pypi/h2o

advisories (2)

Vendor and ecosystem advisories describing this.

GHSA-7qq7-pvm9-x8rfH2O Vulnerable to Denial of Service (DoS) via `/3/ParseSetup` Endpoint2025-03-20ghsa · osvUS
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.
PYSEC-2026-1440H2O Vulnerable to Denial of Service (DoS) via `/3/ParseSetup` Endpoint2026-07-07vendor · osvUS
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.

also known as (6)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv nvd NVD CVE.org MITRE

published 2025-03-20modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

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