CVE-2026-45392

DOM-based XSS in Cribl Stream

7.1 High

DOM-based cross-site scripting (XSS) in Cribl Stream before 4.17.1 allows a remote attacker to execute arbitrary JavaScript in the browser of an authenticated user who is tricked into visiting a crafted URL and interacting with the page.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: Active

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.28%Up 0.3 points since May 12, 2026

What each source reports

CVE List Score used 7.1

DOM-based XSS in Cribl Stream

Record: CVE-2026-45392
CVSS 4.0: 7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 8.7 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-79, CWE-20
Updated: 2026-11-02

EUVDEUVD-2026-29357 7.1

Record: EUVD-2026-29357
CVSS 4.0: 7.1 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-6gcc-j9m6-4752 8.4

Reserved. Details will be published at disclosure.

Reserved. Details will be published at disclosure.

Record: GHSA-6gcc-j9m6-4752
CVSS 4.0: 8.4 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/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
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-20, CWE-79
Updated: 2026-11-02

NVD 8.4

Record: CVE-2026-45392
CVSS 4.0: 8.4 HighCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:N/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
CVSS 3.1: 8.7 HighCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CVSS 3.1: 9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-79, CWE-20
Updated: 2026-11-02

Affected products

cribl stream

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-45392 is a high vulnerability (CVSS 7.1) in Cribl Stream, published May 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.28%, the 20th percentile. No source names a fixed version.