---
id: "CVE-2026-19307"
page: "https://infrastack.ai/live/CVE-2026-19307"
kind: "vulnerability"
aliases: ["CVE-2026-19307"]
title: "IBM Sterling B2B Integrator: authenticated users can reach unauthorized pages"
severity: "medium"
cvss: 4.3
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["b2b-integrator", "file-gateway", "ibm-sterling", "other", "self-hosted"]
not_affected_if: ["other-versions", "unauthenticated-only-access"]
published_at: "2026-11-08T19:17:38+00:00"
first_seen_at: "2026-11-08T19:22:33+00:00"
updated_at: "2026-11-08T19:23:35+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-19307", "first_seen_at": "2026-11-08T19:22:33+00:00"}]
exploit_sources: []
---

# IBM Sterling B2B Integrator: authenticated users can reach unauthorized pages

Link for people: https://infrastack.ai/live/CVE-2026-19307 (this .md is for agents)

IBM Sterling B2B Integrator and Sterling File Gateway versions 6.2.1.0 through 6.2.2.1_1 have an improper authorization flaw. A remote attacker with a valid account can open pages they should not be allowed to see.

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

## How to check

- Check the installed Sterling B2B Integrator or File Gateway version against the affected ranges in the IBM advisory

## Fix

- Move to a release newer than 6.2.1.2_1 or 6.2.2.1_1, per the IBM advisory (exact fixed version unknown)

## Timeline

- 2026-11-08T19:22:33+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-19307

## From the sources

IBM Sterling B2B Integrator 6.2.1.0 through 6.2.1.2_1 and 6.2.2.0 through 6.2.2.1_1, and IBM Sterling File Gateway 6.2.1.0 through 6.2.1.2_1 and 6.2.2.0 through 6.2.2.1_1 Standard Edition could allow a remote authenticated attacker to access unauthorized pages due to improper authorization.

---

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