VulnSocial

CVE-2019-5420General(debian / debian_linux)

LOWCVSS 9.8 · CRITICAL

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

A remote code execution vulnerability in development mode Rails <5.2.2.1, <6.0.0.beta3 can allow an attacker to guess the automatically generated development mode secret token. This secret token can be used in combination with other Rails internals to escalate to a remote code execution exploit.

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0.5/ 10 priority

Sources & remediation

Patch / fix
Exploit / PoC references
Other references
Weakness type (CWE)
CWE-77CWE-330

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • debian_linux
  • fedora
  • rails

Threat summary

  • 1 mentions across 1 observed day

What's happening

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

Affected systems

Vendors
debianfedoraprojectrubyonrails
Products
debian_linuxfedorarails

3 versions affected across 3 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-08-14: 1Technical Details · 2026-08-14: 108-14
Signal classification1 categories
General
1100.0%
Full discourse1 post
  • Coder_Tx@coder_tx
    General

    İlginç olan şu: bu 13 yıllık bir hikaye. 2013'te Rails RCE ile başladı, 2016 joernchen araştırmasıyla devam etti, 2018'de universal chain geldi, 2019'da CVE-2019-5420 ve YAML.load açığı eklendi. Her adım bir öncekinin gadget'larını yeniden kullandı.

    Post summary

    The text outlines a 13‑year timeline of Ruby on Rails remote‑code‑execution vulnerabilities, mentioning CVE‑2019‑5420 and a YAML.load flaw, but offers no new exploit details or remediation guidance.

    1000034
    88 followersView on X
CPE platform detail5 entries

5 of 5 entries

PartVendorProductVersionTarget SWTarget HW
OSdebiandebian_linux8.0--
OSfedoraprojectfedora30--
Apprubyonrailsrails---
Apprubyonrailsrails6.0.0--
Apprubyonrailsrails6.0.0--

Explore more

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