CVE-2026-6860

medium

Published 2026-05-06 · Modified 2026-06-02

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CVSS v3

5.3

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

CVSS v4 NEW

6.9

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

VIR risk

5.3

Description

Vert.x has a DoS via unbounded server-side SNI SslContext cache growth

Predictions

Exploit likelihood

63%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Maven	io.vertx:vertx-core	`>=4.3.4,<=4.3.8`
Maven	io.vertx:vertx-core	`>=4.4.0,<=4.4.9`
Maven	io.vertx:vertx-core	`>=4.5.0,<=4.5.25`
Maven	io.vertx:vertx-core	`>=5.0.0,<=5.0.8`
MAVEN	io.vertx:vertx-core	`>= 5.0.0, <= 5.0.8`
MAVEN	io.vertx:vertx-core	`>= 4.5.0, <= 4.5.25`
MAVEN	io.vertx:vertx-core	`>= 4.4.0, <= 4.4.9`
MAVEN	io.vertx:vertx-core	`>= 4.3.4, <= 4.3.8`
Maven	io.vertx:vertx-core	`>=4.5.0,<4.5.27`	`4.5.27`
Maven	io.vertx:vertx-core	`>=5.0.0,<5.0.12`	`5.0.12`

Application impact

Vendor	Product	Versions	Fixed
eclipse	vert.x	`{"startIncluding":"4.3.4","endIncluding":"4.5.26"}`

References

CWEs

CWE-770 CWE-295

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.