CVE-2026-50196Disclosure

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. In Steeltoe.Discovery.Eureka prior to versions 4.2.0 and 3.4.0, `DataCenterInfo.FromJson` throws `ArgumentException` for any `name` value other than `"MyOwn"` or `"Amazon"`, despite the Java Eureka specification defining a third valid value: `"Netflix"`. The exception propagates through the entire registry deserialization chain and is swallowed by the periodic cache refresh task, leaving the local service registry permanently empty or stale. Versions 4.2.0 and 3.4.0 patch the issue. If an immediate upgrade is not possible, remove any registrations using unsupported `DataCenterInfo.name` values from the registry. In mixed Java/Spring and Steeltoe environments, audit for the `Netflix` data center type before deploying Steeltoe Eureka clients.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-20CWE-400

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-06-19: 1Patch / Workaround · 2026-06-19: 1Technical Details · 2026-06-19: 106-19
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Hugo | DevOps | Cybersecurity 🇱🇻@HugoValters
    Disclosure

    #CVE-2026-50196 - Insecure Deserialization in Steeltoe. #CVSS 7.5. Leads to #DoS via unhandled exception in Eureka cache refresh. No patch yet. Monitor and apply workarounds. #CVEAlert #Steeltoe #infosec #cybersecurity #hackers #Germany more detailed info: https://www.valtersit.com/cve/CVE-2026-50196

    Post summary

    The post announces the CVE-2026-50196 insecure deserialization flaw in Steeltoe, with a CVSS of 7.5 and a DoS impact via an unhandled exception; a patch is not yet available but workarounds are suggested.

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    948 followersView on X

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