Quick answers
- Is CVE-2026-91763 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-91763 being exploited in the wild.
- How severe is CVE-2026-91763?
- High severity, with a CVSS score of 8.2, published 10 November 2026.
- Which products and versions are affected?
- Hitachi Dynamic Link Manager for Linux 8.6.2-00 to 9.0.3-01.
- Is there a fix for CVE-2026-91763?
- Yes: fixed in 9.0.5-00. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-91763 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-91763?
- Check whether you run Hitachi Dynamic Link Manager for Linux 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: 9.0.5-00
Technical details
This insecure temporary file vulnerability (CWE-367) in Hitachi Dynamic Link Manager for Linux allows local privilege escalation through symlink following. An attacker with low privileges can exploit the unsafe handling of temporary files to gain access to sensitive information, modify critical files, or cause a denial of service. A fix is available in version 9.0.5-00 and later.
Affected products
- Hitachi Dynamic Link Manager for Linux 8.6.2-00 to 9.0.3-01
Timeline
- 2026-11-10: disclosed