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Cribl Stream CVE-2026-56747

| EUVDEUVD-2026-49567 HIGH
Code Injection (CWE-94)
2026-07-27 Cribl GHSA-c2q2-868h-6pj2
8.7
CVSS 4.0 · Vendor: Cribl
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Severity by source

Vendor (Cribl) PRIMARY
8.7 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from Vendor (Cribl) · only source for this CVE.

CVSS VectorVendor: Cribl

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Patch available
Jul 27, 2026 - 21:17 EUVD
Analysis Generated
Jul 27, 2026 - 20:22 vuln.today
CVE Published
Jul 27, 2026 - 19:22 cve.org
HIGH 8.7

DescriptionCVE.org

Improper control of generation of code in the JSON Pointer-to-accessor compiler in Cribl Stream before 4.18.2 allows a remote authenticated attacker with edit privileges to execute arbitrary JavaScript on the server via a crafted database connection identifier or pack configuration value.

AnalysisAI

Arbitrary JavaScript execution in Cribl Stream before 4.18.2 allows authenticated attackers with edit privileges to run arbitrary code on the server via crafted database connection identifiers or pack configuration values. The vulnerability stems from improper code generation in the JSON Pointer-to-accessor compiler. No public exploit or active exploitation has been reported.

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CVE-2026-56747 vulnerability details – vuln.today

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