VulnSocial

CVE-2026-84207Disclosure

LOWCVSS 5.3 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Heym before 0.0.98 fails to apply SSRF egress guards to WebSocket Send and WebSocket Trigger nodes, allowing authenticated users to connect to internal services. Attackers can craft workflow nodes with arbitrary URLs and headers to reach internal services and read responses from the WebSocket Trigger node.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-918

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-01: 1Technical Details · 2026-09-01: 109-01
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
Full discourse1 post
  • Eurico Nicacio { h3llh0und } 🏴@euriconicacio
    Disclosure

    CVE-2026-84207: a good SSRF guard that two WebSocket paths never called Check the blog post: https://euriconicacio.github.io/blog/cve-2026-84207-a-good-ssrf-guard-that-two-websocket-paths-never-called/ https://t.co/ACFNZ9JMih

    Post summary

    The tweet announces CVE-2026-84207, describing it as an SSRF guard issue involving two unused WebSocket paths, and invites readers to a blog post for full details. No exploits, patches, or active use is mentioned.

    0000060
    277 followersView on X

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