CVE-2026-101581: Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-dns-resolver-ro

Routine

MEDIUM 6.5REMOTE

CVE-2026-101581 is a medium-severity flaw (CVSS 6.5) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-dns-resolver-round-robin). Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via DNS to compromise Helidon. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Helidon accessible data and unaut

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 76%)
CISA exploited list	No
Weakness	CWE-284
Published	2026-10-20
Last modified	2026-10-22

Publisher (CNA): Oracle

Last updated 2026-10-22 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Timeline

2026-10-20Published CVE record published
2026-10-22 19:17 UTCUpdated Record last modified

Exact fixes by distribution

Fedora 46 · wasmedge · FIXED · 0.18.1-1.fc46 · FEDORA-2026-4c27216e39 · source

sudo dnf upgrade --advisory=FEDORA-2026-4c27216e39

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-101581?

No fixed release is listed yet. Watch the vendor advisory and apply any mitigation shown on this page.

Is CVE-2026-101581 being exploited?

CVE-2026-101581 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-101581 affect?

CVE-2026-101581 affects affected software. Severity is medium (CVSS 6.5). Vulnerability in the Helidon product of Oracle Fusion Middleware (component: helidon-webclient-dns-resolver-round-robin). Supported versions that are affected are 4.0.0-4.5.5 and 27.0.0. Easily exploitable vulnerability allows unauthentica

How urgent is CVE-2026-101581?

Priority 34/100. Remotely exploitable, no login, no user action

References

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