Critical Alert 1 Active Exploit Detected Today

CVE-2026-86950 — Apple Multiple Products Out-of-Bounds Write Vulnerability →
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September 30, 2026

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CVE-2026-59878NVD

Vulnerability Summary

Improper Input Validation vulnerability in Apache ActiveMQ AMQP, Apache ActiveMQ, Apache ActiveMQ All.

A remote unauthenticated peer that can reach an exposed AMQP NIO connector can trigger denial-of-service behavior by sending a frame size value. This cause the NIO threads to die and if done rapidly enough can lead to exhaustion of the NIO thread pool denying service to other connections.
This issue affects Apache ActiveMQ AMQP: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ: before 5.19.9, from 6.0.0 before 6.2.8; Apache ActiveMQ All: before 5.19.9, from 6.0.0 before 6.2.8.

Users are recommended to upgrade to version 5.19.9, 6.2.8, or 6.3.0 which fixes the issue.
Severity Level
HIGH(7.5)
Published Date
Jul 28, 2026
Last Modified
Aug 5, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.49%Probability
Root Weakness (CWE)
CWE-20: Improper Input Validation ↗
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required.
CVSS v3.1 Base Metrics — Score 7.5 (HIGH)
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityNone
AvailabilityHigh

Affected & Patched Versions

Affected Versions
  • Apache Activemq < 5.19.9
  • Apache Activemq >= 6.0.0 and < 6.2.8
  • Apache Activemq All < 5.19.9
  • Apache Activemq All >= 6.0.0 and < 6.2.8
  • Apache Activemq Amqp < 5.19.9
  • Apache Activemq Amqp >= 6.0.0 and < 6.2.8
Patched Versions
  • Apache Activemq 5.19.9
  • Apache Activemq 6.2.8
  • Apache Activemq All 5.19.9
  • Apache Activemq All 6.2.8
  • Apache Activemq Amqp 5.19.9
  • Apache Activemq Amqp 6.2.8
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🎁7-Day Free Trial — Try Pro or Team, no card required.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
📈EPSS Spike Alerts — Catch rising risk before it peaks.
🎯Custom EPSS/CVSS — Filter noise, focus on risk.
🛡️Exploit Intel — A 2nd confirmed-exploit signal beyond KEV.
🐙GitHub Issues — Auto-tracked, no duplicates.
📬Weekly Digest — One clean summary, not inbox spam.
🏷️Watchlist Groups — Tag alerts by team (Infra/AppSec/SOC).
💬Webhooks — Slack & Teams integration.
🔀Smart Routing — Critical alerts to one channel, rest to another.
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External References