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TI-2026-74634 Aliases CVE-2026-102465GHSA-2fhm-447p-jh2m

Unbounded allocation in Eclipse Vert.x Redis client RESP parser

Priority LOW 35CWE-770Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

Eclipse Vert.x versions from 4.0.0 through 4.5.34, from 5.0.0 through 5.0.12, from 5.1.0 through 5.1.9, and 5.2.0 are affected. The Vert.x Redis client RESP parser pre-allocates arrays to a length declared by the server without an upper bound (CWE-770). A malicious or compromised Redis server, or an attacker in a man-in-the-middle position, can send a crafted response declaring an extremely large length, causing an OutOfMemoryError that crashes the event loop thread and denies service to connections sharing that loop.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

In Eclipse Vert.x versions [4.0.0, 4.5.34] or [5.0.0,5.0.12] or [5.1.0,5.1.9] or [5.2.0, 5.2.0], the Vert.x Redis client RESP parser pre-allocates arrays to a length declared by the server without enforcing an upper bound. A malicious or compromised Redis server, or an attacker in a man-in-the-middle position, can send a crafted RESP response declaring an extremely large array, push, or attribute length, causing the client to attempt a massive heap allocation. The resulting OutOfMemoryError crashes the Vert.x event loop thread, denying service to all connections and verticles sharing that loop. The impacted component is io.vertx:vertx-mysql-client.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00232 14th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Eclipse FoundationEclipse Vert.x4.0.0 – 4.5.34; 5.0.0 – 5.0.12; 5.1.0 – 5.1.9; 5.2.0—No fix listedCNA
  • Eclipse Vert.x VendorEclipse Foundation Affected 4.0.0 – 4.5.34; 5.0.0 – 5.0.12; 5.1.0 – 5.1.9; 5.2.0 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:eclipse:vert.x:*:*:*:*:*:*:*:*4.5.0 to before 4.5.35; 5.0.0 to before 5.1.10VulnerableEclipse Foundation
cpe:2.3:a:eclipse:vert.x:5.2.0:*:*:*:*:*:*:*5.2.0VulnerableEclipse Foundation
  • cpe:2.3:a:eclipse:vert.x:*:*:*:*:*:*:*:* Versions 4.5.0 to before 4.5.35; 5.0.0 to before 5.1.10 Vulnerable ·Eclipse Foundation
  • cpe:2.3:a:eclipse:vert.x:5.2.0:*:*:*:*:*:*:* Versions 5.2.0 Vulnerable ·Eclipse Foundation

Remediation

The sources list no fixed version for Eclipse Vert.x.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-15 Threatist record created from CVE-2026-102465
  2. 2026-10-16 Alias added: GHSA-2fhm-447p-jh2m
  3. 2026-10-21 CVSS score added · NVD

References

Advisory 2

  • TI-2026-06017 Improper certificate validation in Eclipse Vert.x CVSS 4.0MEDIUM 6.9
  • TI-2025-10971 In Eclipse Vert.x versions [4.0.0, 4.5.21] and [5.0.0, 5.0.4], a StaticHandler… CVSS 4.0MEDIUM 6.3
  • TI-2019-13165 Path traversal in Eclipse Vert.x CVSS 3.1CRITICAL 9.8
  • TI-2018-09003 XML external entity injection in Eclipse Vert.x CVSS 3.0CRITICAL 9.8
  • TI-2018-09001 Path traversal in Eclipse Vert.x CVSS 3.0CRITICAL 9.8
  • TI-2025-10972 Cross-site scripting in Eclipse Foundation Vert.x CVSS 4.0LOW 2.3
See all 26 →

Sources

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