Quick answers
- Is CVE-2026-19307 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-19307 being exploited in the wild.
- How severe is CVE-2026-19307?
- Medium severity, with a CVSS score of 4.3, published 8 November 2026.
- Which products and versions are affected?
- IBM Sterling File Gateway 6.2.1.0 through 6.2.1.2_1, 6.2.2.0 through 6.2.2.1_1; IBM Sterling B2b Integrator 6.2.1.0 through 6.2.1.2_1, 6.2.2.0 through 6.2.2.1_1.
- Is there a fix for CVE-2026-19307?
- Yes: fixed in IBM Sterling B2B Integrator 6.2.1.3, 6.2.2.2; IBM Sterling File Gateway 6.2.1.3, 6.2.2.2. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-19307 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-19307?
- Check whether you run IBM Sterling File Gateway or IBM Sterling B2b Integrator at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: IBM Sterling B2B Integrator 6.2.1.3, 6.2.2.2; IBM Sterling File Gateway 6.2.1.3, 6.2.2.2
Technical details
IBM Sterling B2B Integrator and File Gateway versions 6.2.1.0–6.2.1.2_1 and 6.2.2.0–6.2.2.1_1 contain an improper authorization flaw (CWE-285) that allows remote authenticated users to access unauthorized pages. The vulnerability requires valid authentication credentials and network access to the affected system. A fix is available in versions 6.2.1.3 and 6.2.2.2.
Affected products
- IBM Sterling B2B Integrator 6.2.1.0 through 6.2.1.2_1, 6.2.2.0 through 6.2.2.1_1
- IBM Sterling File Gateway 6.2.1.0 through 6.2.1.2_1, 6.2.2.0 through 6.2.2.1_1
Timeline
- 2026-10-20: advisory