Information Exposure Affecting apache-nifi package, versions <2.9.0-r14


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.19% (10th percentile)

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  • Snyk IDSNYK-WOLFILATEST-APACHENIFI-17332833
  • published13 Jun 2026
  • disclosed12 Jun 2026

Introduced: 12 Jun 2026

NewCVE-2026-45536  (opens in a new tab)
CWE-200  (opens in a new tab)
CWE-772  (opens in a new tab)

How to fix?

Upgrade Wolfi apache-nifi to version 2.9.0-r14 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache-nifi package and not the apache-nifi package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

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-&gt;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.

CVSS Base Scores

version 3.1