CVE-2026-45536

Published: Giu 12, 2026 Last Modified: Giu 15, 2026
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 4,0
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: low

Description

AI Translation Available

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, netty_unix_socket_recvFd sets msg_control to `char control[CMSG_SPACE(sizeof(int))]` (line 940) — 24 bytes on 64-bit Linux. A peer-sent SCM_RIGHTS cmsg carrying two ints has cmsg_len = CMSG_LEN(8) = 24, which fits exactly with no MSG_CTRUNC, so the kernel installs both fds in the receiving process. The subsequent check `cmsg->cmsg_len == CMSG_LEN(sizeof(int))` (line 972, expected 20) fails, the branch that would read the fd is skipped, and neither installed fd is closed. The for(;;) loop calls recvmsg again (non-blocking → EAGAIN → Java maps to 0 → read loop exits normally), leaving two leaked fds per message. There is no MSG_CTRUNC handling. Reachable via Epoll/KQueue DomainSocketChannel when the application opts into DomainSocketReadMode.FILE_DESCRIPTORS (non-default). Versions 4.1.135.Final and 4.2.15.Final patch the issue.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0001
Percentile
0,0th
Updated

EPSS Score Trend (Last 3 Days)

200

Exposure of Sensitive Information to an Unauthorized Actor

Draft
Abstraction: Class Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality
Potential Impacts:
Read Application Data
Applicable Platforms
Technologies: Not Technology-Specific, Web Based, Mobile
Likelihood of Exploit: High
View CWE Details
772

Missing Release of Resource after Effective Lifetime

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability
Potential Impacts:
Dos: Resource Consumption (Other) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Cpu)
Applicable Platforms
Technologies: Mobile
Likelihood of Exploit: High
View CWE Details
Application

Netty by Netty

Product Information
Vendor Netty
Product Netty
Version Range Affected
To 4.1.135 (exclusive)
cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Netty by Netty

Product Information
Vendor Netty
Product Netty
Version Range Affected
From 4.2.0 (inclusive)
To 4.2.15 (exclusive)
cpe:2.3:a:netty:netty:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/netty/netty/releases/tag/netty-4.1.135.F…
https://github.com/netty/netty/releases/tag/netty-4.1.135.Final
https://github.com/netty/netty/releases/tag/netty-4.2.15.Fi…
https://github.com/netty/netty/releases/tag/netty-4.2.15.Final
https://github.com/netty/netty/security/advisories/GHSA-w57…
https://github.com/netty/netty/security/advisories/GHSA-w573-9ffj-6ff9