VulnSocial

CVE-2026-41586Active Exploitation(hyperledger / fabric)

MEDIUMCVSS 9.8 · CRITICAL

Exploitation ongoing with high activity in latest observed window (2 mentions)

Immediate actions

  • Patch hyperledger fabric systems immediately
  • Assume compromise if assets are exposed

Recommended action window: Immediate (within 24h)

NVD description

Hyperledger Fabric is an enterprise-grade permissioned distributed ledger framework for developing solutions and applications. From versions 1.0.0 to 2.2.26, Channel.java implements readObject() and exposes deSerializeChannel() which call ObjectInputStream.readObject() on untrusted byte arrays without configuring an ObjectInputFilter. This is a classic Java deserialization RCE pattern. At time of publication, there are no publicly available patches.

hyperledger CVEsBack to dashboard
4.0/ 10 priority

Sources & remediation

Exploit / PoC references
Other references
Weakness type (CWE)
CWE-502

Priority

MEDIUM

Exploitation

ACTIVE

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.

  • fabric

Threat summary

  • Active exploitation appears in 1 classified signals
  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Active exploitation reported across 1 signal
  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • General: 1 classified signal
  • 2 total mentions across 1 day

Affected systems

Vendors
hyperledger
Products
fabric

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-05-07: 2Active Exploitation · 2026-05-07: 1Patch / Workaround · 2026-05-07: 1Technical Details · 2026-05-07: 105-07
Signal classification2 categories
Active Exploitation
150.0%
General
150.0%
Referenced assets1 URL
By indicator
Full discourse2 posts
  • NerdieNews@NewsNerdie
    Active Exploitation

    CVE-2026-41586 in fabric-sdk-java: confirmed exploitation in the wild, allowing remote code execution via Java deserialization. ⚠️ Patch now to prevent critical breaches. #NerdieNews #CyberSecurity #InfoSec #Vulnerability #DataBreach #Cisco https://t.co/92nsvvkomU

    Post summary

    The tweet reports confirmed wild exploitation of CVE-2026-41586 with remote code execution through Java deserialization and urges applying a patch to mitigate the threat.

    0001092
    57 followersView on X
  • CVE@CVEnew
    General

    CVE-2026-41586 Hyperledger Fabric is an enterprise-grade permissioned distributed ledger framework for developing solutions and applications. From versions 1.0.0 to 2.2.26, Channel.… https://www.cve.org/CVERecord?id=CVE-2026-41586

    Post summary

    The entry merely references CVE-2026-41586 and links to its CVE record, with no additional information on the vulnerability, exploits, or mitigation.

    0000093
    57.4K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Apphyperledgerfabric---

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