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CVE-2024-3884VulnerabilityPublished Updated

Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.0.12 security update

Affects Red HatSource GCVE Database

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Mentioned vulnerabilities

Authoritative record:CVE-2024-3884· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade Red Hat undertow to 8.1.3 soon.

Data as of 5 Nov 2026, 17:17 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CISA-ADPCVSS 3.17.5
Patch
Available – fixed in 8.1.3
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 3 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: 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 5 Nov 2026.

What to do

Upgrade org.wildfly.extension/undertow to 8.1.3.

Affected software

ProductAffectedFixed in
Mavenorg.wildfly.extension/undertowpkg:maven/org.wildfly.extension/undertowOther threatsAffected
  • >=8.1.0 <8.1.3
Fixed in
  • 8.1.3

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A security update is available in Red Hat JBoss Enterprise Application Platform 8.0.12, which fixes the identified vulnerabilities. Users should apply this update after ensuring all previous errata are applied and backing up their systems. Detailed update instructions are provided by Red Hat. No additional mitigation steps are indicated beyond applying the official patch.

Description

Red Hat JBoss Enterprise Application Platform 8.0.12 includes important security fixes addressing vulnerabilities in the Undertow HTTP server component. These fixes resolve issues such as failure to reject malformed Host headers that could lead to cache poisoning and SSRF, an HTTP/2 denial-of-service vulnerability, and an out-of-memory condition when parsing form data with application/x-www-form-urlencoded encoding. The update replaces version 8.0.11 and is recommended for Red Hat Enterprise Linux 9 users running JBoss EAP 8.0.

References

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