CVE-2026-81515 Steeltoe - Denial of Service

Steeltoe 4.0.0 to 4.3.0 contains a denial of service caused by malformed registry response deserialization in EurekaDiscoveryClient, letting principals that can register or update instances cause clients to receive empty or stale instance lists, exploit requires instance registration or update privileges.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.61% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
17 September 2026
Updated
15 October 2026
Weakness
CWE-755

Vendor fix

Update to version 4.3.0 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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