CVE-2026-57819VulnerabilityPublished 28 Oct 2026

Red Hat Security Advisory: Red Hat JBoss Enterprise Application Platform 8.1.9 security update

Affects Red HatSource GCVE Database

Mentioned vulnerabilities

Authoritative record:CVE-2026-57819· High 7.5

Not known to be exploited · CVSS 7.5 High · fixed in Red Hat package updates : patch Red Hat org.apache.cxf:cxf-rt-frontend-jaxrs soon.

Data as of 29 Oct 2026, 08:27 UTC

CVSS 3.1 base score

7.5High

How severe the flaw is on the 0–10 CVSS scale.

Patch: Available – fixed in 4.2.3, 4.1.8, 3.6.12

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

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

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable component is bound to the network stack and the set of possible attackers extends beyond the other options listed, up to and including the entire Internet. Such a vulnerability is often termed 'remotely exploitable' and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: Specialized access conditions or extenuating circumstances do not exist. An attacker can expect repeatable success against the vulnerable component.
Privileges Required: None: The attacker is unauthorized prior to attack, and therefore does not require any access to settings or files to carry out an attack.
User Interaction: None: The vulnerable system can be exploited without any interaction from any user.
Scope: Unchanged: An exploited vulnerability can only affect resources managed by the same security authority. In this case, the vulnerable component and the impacted component are either the same, or both are managed by the same security authority.
Confidentiality: None: There is no loss of confidentiality within the impacted component.
Integrity: None: There is no loss of integrity within the impacted component.
Availability: High: There is total loss of availability, resulting in the attacker being able to fully deny access to resources in the impacted component; this loss is either sustained (while the attacker continues to deliver the attack) or persistent (the condition persists even after the attack has completed). Alternatively, the attacker has the ability to deny some availability, but the loss of availability presents a direct, serious consequence to the impacted component (e.g., the attacker cannot disrupt existing connections, but can prevent new connections; the attacker can repeatedly exploit a vulnerability that, in each instance of a successful attack, leaks a only small amount of memory, but after repeated exploitation causes a service to become completely unavailable).

Definitions: FIRST CVSS v3.1 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 6 Aug 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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 29 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Apache to 4.2.3, 4.1.8 or 3.6.12.

Affected software

Product	Affected	Fixed in
Apache Software FoundationApache CXF	Affected >=4.2.0 <4.2.3	Fixed in 4.2.3
Apache Software FoundationApache CXF	Affected >=4.0.0 <4.1.8	Fixed in 4.1.8
Apache Software FoundationApache CXF	Affected <3.6.12	Fixed in 3.6.12
MavenApache Software Foundation/org.apache.cxf:cxf-rt-frontend-jaxrs`pkg:maven/Apache Software Foundation/org.apache.cxf:cxf-rt-frontend-jaxrs`Other threats	Affected >=4.2.0 <4.2.3 >=4.0.0 <4.1.8 <3.6.12	Fixed in 4.2.3 4.1.8 3.6.12

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

Description

Red Hat JBoss Enterprise Application Platform 8 is a platform for Java applications based on the WildFly application runtime. This release of Red Hat JBoss Enterprise Application Platform 8.1.9 serves as a replacement for Red Hat JBoss Enterprise Application Platform 8.1.8, and includes bug fixes and enhancements. See the Red Hat JBoss Enterprise Application Platform 8.1.9 Release Notes for information about the most significant bug fixes and enhancements included in this release. Security Fix(es): * netty-codec-http2: Netty: Information disclosure via CORS Vary header overwrite [eap-8.1.z] (CVE-2026-59903) * netty-buffer: Netty: Information disclosure via CORS Vary header overwrite [eap-8.1.z] (CVE-2026-59903) * cxf: Apache CXF: Denial of service via many attachment headers [eap-8.1.z] (CVE-2026-64958) * cxf: Apache CXF: Authentication Bypass via Crafted OIDC Self-Issued ID Tokens [eap-8.1.z] (CVE-2026-65583) * cxf-xjc-bug986: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-ws-security: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * jbossws-cxf-server: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-xjc-runtime: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * jbossws-cxf-resources: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-wsdl: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-services-sts-core: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-tools-java2ws: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-ws-policy: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * jbossws-cxf-client: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-tools-wsdlto-frontend-jaxws: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-tools-common: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-xjc-dv: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-services-ws-discovery-api: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-tools-wsdlto-core: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * jbossws-cxf-transports-undertow: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-tools-wsdlto-databinding-jaxb: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-ws-rm: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-xjc-boolean: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-tools-validator: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * jbossws-cxf-transports-udp: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * jbossws-cxf-factories: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-xjc-ts: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-bindings-coloc: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-features-clustering: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-transports-local: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-transports-http-hc: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-security: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-transports-jms: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-core: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-databinding-aegis: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-management: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-features-throttling: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-features-logging: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (CVE-2026-57819) * cxf-rt-bindings-xml: Apache CXF: Denial of Service via uncontrolled form parameters [eap-8.1.z] (

CWE-770Allocation of Resources Without Limits or Throttling (opens in a new tab)
Base weaknessLikelihood of exploit: HighCWE Top 25 (2025): #25
The product allocates a reusable resource or group of resources on behalf of an actor without imposing any intended restrictions on the size or number of resources that can be allocated.
Requirements
Clearly specify the minimum and maximum expectations for capabilities, and dictate which behaviors are acceptable when resource allocation reaches limits.
Architecture and Design
Limit the amount of resources that are accessible to unprivileged users. Set per-user limits for resources. Allow the system administrator to define these limits. Be careful to avoid CWE-410.
Architecture and Design
Design throttling mechanisms into the system architecture. The best protection is to limit the amount of resources that an unauthorized user can cause to be expended.
OWASP Cheat Sheets
Abuse Case (opens in a new tab)
OWASP ASVS 4.0.3
V8.1.4 (opens in a new tab)
V13.4.1 (opens in a new tab)
V11.1.4 (opens in a new tab)
Attack patterns
XML Ping of the Death (opens in a new tab)
Exponential Data Expansion (opens in a new tab)
Serialized Data Parameter Blowup (opens in a new tab)
Serialized Data with Nested Payloads (opens in a new tab)
Oversized Serialized Data Payloads (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-444Inconsistent Interpretation of HTTP Requests (opens in a new tab)
Base weaknessOWASP Top 10 A06:2025: Insecure Design (opens in a new tab)
The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination.
Implementation
Use a web server that employs a strict HTTP parsing procedure, such as Apache.
Implementation
Use only SSL communication.
Implementation
Terminate the client session after each request.
OWASP Cheat Sheets
REST Assessment (opens in a new tab)
REST Security (opens in a new tab)
Cross-Site Request Forgery Prevention (opens in a new tab)
Secure Design Principles (opens in a new tab)
OWASP ASVS 4.0.3
V13.2.5 (opens in a new tab)
Attack patterns
HTTP Response Smuggling (opens in a new tab)
HTTP Request Smuggling (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-611Improper Restriction of XML External Entity Reference (opens in a new tab)
Base weaknessOWASP Top 10 A02:2025: Security Misconfiguration (opens in a new tab)
The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.
Implementation · System Configuration
Many XML parsers and validators can be configured to disable external entity expansion.
OWASP Cheat Sheets
Deserialization (opens in a new tab)
XML Security (opens in a new tab)
XML External Entity Prevention (opens in a new tab)
OWASP ASVS 4.0.3
V5.5.2 (opens in a new tab)
Attack patterns
Data Serialization External Entities Blowup (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).
CWE-303Incorrect Implementation of Authentication Algorithm (opens in a new tab)
Base weaknessOWASP Top 10 A07:2025: Authentication Failures (opens in a new tab)
The requirements for the product dictate the use of an established authentication algorithm, but the implementation of the algorithm is incorrect.
OWASP Cheat Sheets
OWASP Authentication (opens in a new tab)
OWASP ASVS 4.0.3
V2.8.5 (opens in a new tab)
V2.8.4 (opens in a new tab)
V9.2.3 (opens in a new tab)
Attack patterns
Reflection Attack in Authentication Protocol (opens in a new tab)
From MITRE CWE, MITRE CAPEC and OWASP (Top 10, OpenCRE).

References

Community reviews

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Exploitation evidence

What to do

Affected software

Description

WeaknessesCWE-770, CWE-444, CWE-611 +1

Technical details

References

Community reviews

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