Apache MyFaces: Denial of Service via Unbounded Request Parsing

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-76646
StatePUBLISHED
Assignerapache
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-16 20:17:28 UTC
Updated2026-09-17 20:18:15 UTC
DescriptionA remote attacker could cause excessive resource consumption by supplying specially crafted request parameters, potentially resulting in a denial of service condition. Older unsupported versions may also be affected. Users are recommended to upgrade to versions 2.3.12, 2.3-next-M9, 3.0.4, 4.0.4, or 4.1.4, which fix this issue.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS: 0.005060000 probability, percentile 0.421860000 (date 2026-09-20)

Problem Types: CWE-400 | CWE-400 CWE-400 Uncontrolled Resource Consumption

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Apache Software Foundation Apache MyFaces affected 2.2.0-beta 2.2.15 maven Not specified
CNA Apache Software Foundation Apache MyFaces affected 2.3.0 maven Not specified
CNA Apache Software Foundation Apache MyFaces affected 2.3-next-M1 2.3-next-M8 maven Not specified
CNA Apache Software Foundation Apache MyFaces affected 2.3.1 2.3.11 maven Not specified
CNA Apache Software Foundation Apache MyFaces affected 3.0.0 3.0.3 maven Not specified
CNA Apache Software Foundation Apache MyFaces affected 4.0.0 4.0.3 maven Not specified
CNA Apache Software Foundation Apache MyFaces affected 4.1.0 4.1.3 maven Not specified

References

ReferenceSourceLinkTags
www.openwall.com/lists/oss-security/2026/09/16/12 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
lists.apache.org/thread/q8zxrdhbmmx8ofgr9s7ymnqo8l2x8oy9 [email protected] lists.apache.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: n0mi1k (en)

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