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8 vulnerabilities found for Eclipse Vert.x by Eclipse Foundation
CVE-2026-15076 (GCVE-0-2026-15076)
Vulnerability from nvd – Published: 2026-07-14 08:09 – Updated: 2026-07-14 12:20
VLAI
EPSS
VEX
Summary
In versions up to and including 4.5.29 (4.x branch) and 5.1.4 (5.x branch), the WebClientSession component of Eclipse Vert.x Web Client does not validate that the Domain attribute of a Set-Cookie response header matches the originating server's domain, in violation of RFC 6265 section 5.3.
An attacker who controls any server that the victim application contacts can inject a cookie scoped to an arbitrary third-party domain; because the session store performs no cross-domain ownership check, it stores and later transmits that cookie to the targeted domain.
When the victim application subsequently sends a request to the targeted domain using the same WebClientSession, it presents the attacker-injected cookie, causing the receiving service to process the request under the attacker's account. Sensitive data included in the victim application's requests, such as payment amounts, card details, or other API payloads, may then be accessible to the attacker through their own account on that service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 12:20 UTC
CWE
- CWE-346 - Origin Validation Error
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse Vert.x |
Affected:
4.0.0 , ≤ 4.5.29
(semver)
Affected: 5.0.0 , ≤ 5.1.4 (semver) |
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CVE-2026-15075 (GCVE-0-2026-15075)
Vulnerability from nvd – Published: 2026-07-14 08:15 – Updated: 2026-07-14 12:18
VLAI
EPSS
VEX
Summary
In Eclipse Vert.x versions up to and including 4.5.29 (4.x branch) and 5.1.4 (5.x branch), DefaultRedirectHandler (vertx-core) propagates all request headers as-is across cross-origin HTTP 30x redirects. Only Content-Length is stripped; no origin comparison (scheme, host, port) is performed before copying headers to the redirect target.
As a result, credential headers, including Authorization, Cookie, Proxy-Authorization, and arbitrary custom headers such as X-API-Token, are forwarded to the redirect destination without the caller's knowledge.
An attacker who can cause a Vert.x HttpClient to issue a request that is redirected to an attacker-controlled host (for example, by supplying a URL to a webhook dispatcher, image proxy, or microservice URL fetcher) can capture bearer tokens, basic-auth credentials, session cookies, and API keys attached to the original request.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 12:18 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse Vert.x |
Affected:
4.0.0 , ≤ 4.5.29
(semver)
Affected: 5.0.0 , ≤ 5.1.4 (semver) |
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CVE-2026-6860 (GCVE-0-2026-6860)
Vulnerability from nvd – Published: 2026-05-06 09:55 – Updated: 2026-05-12 20:29
VLAI
EPSS
VEX
Summary
A TCP client can perform a TLS handshake and present the server name extension with a server name that is accepted by a server wildcard name, e.g. if the server is configured with a certificate accepting *.example.com, any XYZ.example.com where xyz is a valid name can be used.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-06 14:33 UTC
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse Vert.x |
Affected:
4.3.4 , ≤ 4.5.26
(semver)
Affected: 5.0.0 , ≤ 5.0.11 (semver) |
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CVE-2024-8391 (GCVE-0-2024-8391)
Vulnerability from nvd – Published: 2024-09-04 15:27 – Updated: 2024-09-04 17:40
VLAI
EPSS
VEX
Title
Eclipse Vert.x gRPC server does not limit the maximum message size
Summary
In Eclipse Vert.x version 4.3.0 to 4.5.9, the gRPC server does not limit the maximum length of message payload (Maven GAV: io.vertx:vertx-grpc-server and io.vertx:vertx-grpc-client).
This is fixed in the 4.5.10 version.
Note this does not affect the Vert.x gRPC server based grpc-java and Netty libraries (Maven GAV: io.vertx:vertx-grpc)
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-04 15:52 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse Vert.x |
Affected:
4.3.0 , < 4.5.10
(semver)
|
|
| eclipse_foundation | vert.x |
Affected:
4.3.0 , < 4.5.10
(semver)
cpe:2.3:a:eclipse_foundation:vert.x:*:*:*:*:*:*:*:* |
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CVE-2026-15075 (GCVE-0-2026-15075)
Vulnerability from cvelistv5 – Published: 2026-07-14 08:15 – Updated: 2026-07-14 12:18
VLAI
EPSS
VEX
Summary
In Eclipse Vert.x versions up to and including 4.5.29 (4.x branch) and 5.1.4 (5.x branch), DefaultRedirectHandler (vertx-core) propagates all request headers as-is across cross-origin HTTP 30x redirects. Only Content-Length is stripped; no origin comparison (scheme, host, port) is performed before copying headers to the redirect target.
As a result, credential headers, including Authorization, Cookie, Proxy-Authorization, and arbitrary custom headers such as X-API-Token, are forwarded to the redirect destination without the caller's knowledge.
An attacker who can cause a Vert.x HttpClient to issue a request that is redirected to an attacker-controlled host (for example, by supplying a URL to a webhook dispatcher, image proxy, or microservice URL fetcher) can capture bearer tokens, basic-auth credentials, session cookies, and API keys attached to the original request.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 12:18 UTC
CWE
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse Vert.x |
Affected:
4.0.0 , ≤ 4.5.29
(semver)
Affected: 5.0.0 , ≤ 5.1.4 (semver) |
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CVE-2026-15076 (GCVE-0-2026-15076)
Vulnerability from cvelistv5 – Published: 2026-07-14 08:09 – Updated: 2026-07-14 12:20
VLAI
EPSS
VEX
Summary
In versions up to and including 4.5.29 (4.x branch) and 5.1.4 (5.x branch), the WebClientSession component of Eclipse Vert.x Web Client does not validate that the Domain attribute of a Set-Cookie response header matches the originating server's domain, in violation of RFC 6265 section 5.3.
An attacker who controls any server that the victim application contacts can inject a cookie scoped to an arbitrary third-party domain; because the session store performs no cross-domain ownership check, it stores and later transmits that cookie to the targeted domain.
When the victim application subsequently sends a request to the targeted domain using the same WebClientSession, it presents the attacker-injected cookie, causing the receiving service to process the request under the attacker's account. Sensitive data included in the victim application's requests, such as payment amounts, card details, or other API payloads, may then be accessible to the attacker through their own account on that service.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-14 12:20 UTC
CWE
- CWE-346 - Origin Validation Error
Assigner
References
1 reference
Impacted products
1 product
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Affected:
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(semver)
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CVE-2026-6860 (GCVE-0-2026-6860)
Vulnerability from cvelistv5 – Published: 2026-05-06 09:55 – Updated: 2026-05-12 20:29
VLAI
EPSS
VEX
Summary
A TCP client can perform a TLS handshake and present the server name extension with a server name that is accepted by a server wildcard name, e.g. if the server is configured with a certificate accepting *.example.com, any XYZ.example.com where xyz is a valid name can be used.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-06 14:33 UTC
CWE
- CWE-295 - Improper Certificate Validation
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse Vert.x |
Affected:
4.3.4 , ≤ 4.5.26
(semver)
Affected: 5.0.0 , ≤ 5.0.11 (semver) |
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CVE-2024-8391 (GCVE-0-2024-8391)
Vulnerability from cvelistv5 – Published: 2024-09-04 15:27 – Updated: 2024-09-04 17:40
VLAI
EPSS
VEX
Title
Eclipse Vert.x gRPC server does not limit the maximum message size
Summary
In Eclipse Vert.x version 4.3.0 to 4.5.9, the gRPC server does not limit the maximum length of message payload (Maven GAV: io.vertx:vertx-grpc-server and io.vertx:vertx-grpc-client).
This is fixed in the 4.5.10 version.
Note this does not affect the Vert.x gRPC server based grpc-java and Netty libraries (Maven GAV: io.vertx:vertx-grpc)
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-04 15:52 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Eclipse Foundation | Eclipse Vert.x |
Affected:
4.3.0 , < 4.5.10
(semver)
|
|
| eclipse_foundation | vert.x |
Affected:
4.3.0 , < 4.5.10
(semver)
cpe:2.3:a:eclipse_foundation:vert.x:*:*:*:*:*:*:*:* |
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