Quick answers
- Is CVE-2026-101573 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-101573 being exploited in the wild.
- How severe is CVE-2026-101573?
- Medium severity, with a CVSS score of 6.8, published 20 October 2026.
- Which products and versions are affected?
- Oracle Helidon 3.0.0 through 3.2.21, 4.0.0 through 4.5.5, and 27.0.0.
- Is there a fix for CVE-2026-101573?
- 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-2026-101573 attacked?
- It is attacked over the network, in a software library.
- Am I affected by CVE-2026-101573?
- 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
The vulnerability exists in the helidon-security-providers-http-auth component and allows authentication bypass via HTTP requests. An unauthenticated network attacker with no required privileges can exploit this to access data normally protected by authentication, though the attack is classified as difficult to exploit (AC:H). The vulnerability has cross-system scope impact, meaning exploitation of Helidon may affect downstream systems relying on it.
Affected products
- Oracle Helidon 3.0.0 through 3.2.21, 4.0.0 through 4.5.5, and 27.0.0
Timeline
- 2026-10-20: disclosed