Quick answers
- Is CVE-2026-101571 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-101571 being exploited in the wild.
- How severe is CVE-2026-101571?
- Medium severity, with a CVSS score of 5.6, published 20 October 2026.
- Which products and versions are affected?
- Oracle Helidon 3.0.0-3.2.21 and 4.0.0-4.5.5.
- Is there a fix for CVE-2026-101571?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-101571 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-101571?
- Check whether you run Oracle Helidon 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.
Technical details
A vulnerability in helidon-security-providers-idcs-mapper allows local privilege escalation to read protected data. The attack requires local infrastructure access and low privileges, with difficult exploitation complexity. Successful exploitation results in unauthorized read access to critical Helidon data and can have a scope change impact on other connected products.
Affected products
- Oracle Helidon 3.0.0-3.2.21 and 4.0.0-4.5.5
Timeline
- 2026-10-20: disclosed