---
id: "CVE-2026-77153"
page: "https://infrastack.ai/live/CVE-2026-77153"
kind: "vulnerability"
aliases: ["CVE-2026-77153"]
title: "IBM i: unauthenticated remote users can print files they should not access"
severity: "medium"
cvss: 4.8
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["as400", "ibm-i", "infrastructure", "printing"]
not_affected_if: ["other-release"]
published_at: "2026-11-08T19:17:40+00:00"
first_seen_at: "2026-11-08T19:22:34+00:00"
updated_at: "2026-11-08T19:23:24+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77153", "first_seen_at": "2026-11-08T19:22:34+00:00"}]
exploit_sources: []
---

# IBM i: unauthenticated remote users can print files they should not access

Link for people: https://infrastack.ai/live/CVE-2026-77153 (this .md is for agents)

IBM i versions 7.3 through 7.6 lack an authorization check in the Host-Based Printer Subsystem. A remote attacker without credentials can obtain sensitive information by printing files they should not be able to reach.

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

## How to check

- Confirm the IBM i release on the system, for example with `DSPPTF` or the `Display Software Resources` screen, and check whether it is 7.3, 7.4, 7.5 or 7.6.
- Check whether the Host-Based Printer Subsystem is in use on the system.

## Timeline

- 2026-11-08T19:22:34+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-77153

## From the sources

IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote unauthenticated attacker to obtain sensitive information from the Host-Based Printer Subsystem due to no authorization check. A bad actor could use this vulnerability to print files they should not be able to access.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_