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Update dependency io.netty:netty-transport-native-kqueue to v4.1.135.Final [SECURITY] (main)#54

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Update dependency io.netty:netty-transport-native-kqueue to v4.1.135.Final [SECURITY] (main)#54
renovatebot-confluentinc[bot] wants to merge 1 commit into
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renovate/main-maven-io.netty-netty-transport-native-kqueue-vulnerability

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@renovatebot-confluentinc renovatebot-confluentinc Bot commented Jun 11, 2026

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This PR contains the following updates:

Package Change Age Adoption Passing Confidence
io.netty:netty-transport-native-kqueue (source) 4.1.119.Final4.1.135.Final age adoption passing confidence
io.netty:netty-transport-native-kqueue (source) 4.1.118.Final4.1.135.Final age adoption passing confidence

Warning

Some dependencies could not be looked up. Check the warning logs for more information.


Netty: Unix-socket fd receive leaks descriptors when peer sends two at once

CVE-2026-45536 / GHSA-w573-9ffj-6ff9

More information

Details

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).

Severity

  • CVSS Score: 4.0 / 10 (Medium)
  • Vector String: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

References

This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).


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