CVE-2026-122028

NST Labs Tech Nstbrowser Local Agent API info information disclosure

5.3 Medium

A vulnerability has been found in NST Labs Tech Nstbrowser 1.21.0. Affected by this vulnerability is an unknown functionality of the file /agent/info of the component Local Agent API. Such manipulation leads to information disclosure. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Passive

What an attacker can affect

Confidentiality: Low
Integrity: None
Availability: None

Exploit likelihood

0.38%Unchanged since Nov 5, 2026

What each source reports

CVE List Score used 5.3

NST Labs Tech Nstbrowser Local Agent API info information disclosure

Record: CVE-2026-122028
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:X/RC:C
CVSS 3.0: 4.3 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:P/RL:X/RC:C
CVSS 2.0: 5.0 AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:ND/RC:C
Weakness: CWE-200, CWE-284
Updated: 2026-11-04

EUVDEUVD-2026-117161 5.3

Record: EUVD-2026-117161
CVSS 4.0: 5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
Updated: 2026-11-05

GitHub AdvisoriesGHSA-7whf-44vm-5p2x 2.1

A vulnerability has been found in NST Labs Tech Nstbrowser 1.21.0. Affected by this vulnerability...

Record: GHSA-7whf-44vm-5p2x
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-05

NVD 2.1

Record: CVE-2026-122028
CVSS 4.0: 2.1 LowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/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: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-200, CWE-284
Updated: 2026-11-05

Affected products

nst labs tech nstbrowser

History

History
Recorded	Changed	Sources
Nov 5, 2026	published	EUVD, NVD
Nov 5, 2026	aliases, references	GitHub Advisories
Nov 4, 2026	aliases, published	EUVD
Nov 4, 2026	first indexed	CVE List

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

In short

CVE-2026-122028 is a medium vulnerability (CVSS 5.3) in Nst Labs Tech Nstbrowser, published November 4, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.38%, the 32nd percentile. No source names a fixed version.