---
id: "CVE-2026-93888"
kind: "vulnerability"
aliases: ["CVE-2026-93888"]
title: "IBM Sterling Connect Direct: apnotify utility code injection on Unix"
severity: "high"
cvss: 7.8
epss: 0.00171
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["file-transfer", "ibm-sterling-connect-direct", "other", "unix"]
not_affected_if: ["unknown"]
published_at: "2026-10-20T22:21:07+00:00"
first_seen_at: "2026-10-23T21:57:27+00:00"
updated_at: "2026-10-25T03:08:26+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93888", "first_seen_at": "2026-10-23T21:57:27+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-93888", "first_seen_at": "2026-10-24T13:15:55+00:00"}]
---

# IBM Sterling Connect Direct: apnotify utility code injection on Unix

The apnotify utility in IBM Sterling Connect Direct for Unix versions 6.3.0.0 through 6.3.0.7 and 6.4.0.0 through 6.4.0.6 does not validate user input properly. A local or remote party able to supply input to it can inject code that the utility runs.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Connect Direct for Unix version against 6.3.0.0-6.3.0.7 and 6.4.0.0-6.4.0.6 (version command unknown from sources)
- Locate the apnotify utility on the host and confirm whether it is present (path unknown from sources)

## Fix

- Upgrade IBM Sterling Connect Direct for Unix to a fixed release (fixed version unknown from sources; see IBM advisory)

## Timeline

- 2026-10-23T21:57:27+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-93888
- 2026-10-24T13:15:55+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-93888

## From the sources

IBM Sterling Connect Direct for Unix 6.4.0.0 through 6.4.0.6 and 6.3.0.0 through 6.3.0.7 apnotify utility is vulnerable to a code injection due to insufficient validation of user input.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_