Medium severity · published Oct 15, 2026
CVE-2026-102475
In Eclipse Vert.x versions [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the HTTP proxy provides a body transformer interceptor that relies on a max buffered bytes limit to…
5.9
CVSS
0.3%
EPSS
No
On KEV
Description
In Eclipse Vert.x versions [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the HTTP proxy provides a body transformer interceptor that relies on a max buffered bytes limit to ensure a bounded buffer for each request. This can be used to force a server to indefinitely allocate heap. This vulnerability requires to use an intercepting body transformer.
The impacted component is io.vertx:vertx-http-proxy.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 17% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EV
Eclipse Vert.x · Eclipse Foundation
5.0.0 through 5.0.12; 5.1.0 through 5.1.9; 5.2.0 · source: vendor
VE
Vert.x · Eclipse
5.0.0 before 5.1.10; 5.2.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-102475
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-102475
Vendor Advisory
https://github.com/eclipse-vertx/vertx-http-proxy/security/advisories/GHSA-mjwh-5qfp-hjgc
Issue Tracking
https://gitlab.eclipse.org/security/cve-assignment/-/work_items/351
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