Critical Alert 3 Active Exploits Detected Today

CVE-2025-39964 Linux Kernel Race Condition Vulnerability →
CVE-2026-53266 Linux Kernel Out-of-Bounds Write Vulnerability →
CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Vulnerability →
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CVE-2026-8859NVD

Vulnerability Summary

IBM Langflow OSS 1.0.0 through 1.10.0 Langflow could allow an attacker to write arbitrary files to unintended locations due to improper input validation in the APIRequest component. A path traversal vulnerability exists when the "Save to File" feature is enabled, where filenames extracted from HTTP response Content-Disposition headers are not sanitized before being joined to the temporary directory path. An attacker controlling an external HTTP server can supply crafted filename values containing path traversal sequences (e.g., ../), enabling arbitrary file writes to locations accessible by the Langflow process.
Severity Level
CRITICAL(9.9)
Published Date
Jul 17, 2026
Last Modified
Jul 23, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.37%Probability
Root Weakness (CWE)
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory.
CVSS v3.1 Base Metrics
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
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💬Webhooks — Slack & Teams integration.
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