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VulnerabilityPublished Updated

CVE-2024-4027: Red Hat build of Apicurio Registry 2 · Improper Input Validation

Affects Red Hat build of Apicurio Registry 2Source CVE Database V5

0

Not known to be exploited · CVSS 7.5 High.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 30 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Red HatRed Hat build of Apicurio Registry 2Affected–Fixed in–
Red HatRed Hat build of QuarkusAffected–Fixed in–
Red HatRed Hat Data Grid 8Affected–Fixed in–
Red HatRed Hat Fuse 7Affected–Fixed in–
Red HatRed Hat Integration Camel K 1Affected–Fixed in–
Red HatRed Hat JBoss Enterprise Application Platform 7Affected–Fixed in–
Red HatRed Hat JBoss Enterprise Application Platform 8Affected–Fixed in–
Red HatRed Hat JBoss Enterprise Application Platform Expansion PackAffected–Fixed in–
Red HatRed Hat Process Automation 7Affected–Fixed in–
Red HatRed Hat Single Sign-On 7Affected–Fixed in–

AI-suggested

Currently, there is no mitigation available for this vulnerability. Red Hat recommends monitoring the vendor advisory for updates and applying patches as soon as they are released. No temporary workarounds or mitigations are provided by Red Hat at this time.

Description

A flaw was found in Undertow. Servlets using a method that calls HttpServletRequestImpl.getParameterNames() can cause an OutOfMemoryError when the client sends a request with large parameter names. This issue can be exploited by an unauthorized user to cause a remote denial-of-service (DoS) attack.

References

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