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CVE-2026-45819

baseline-browser-mapping process termination on invalid input causes denial of service

6.6 MediumFix available

baseline-browser-mapping 2.x before 2.11.0 calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination, causing denial of service.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.51%Up 0.1 points since Aug 14, 2026
90%50%10%1%

What each source reports

CVE List Score used 6.6

baseline-browser-mapping 2.x before 2.11.0 calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination, causing denial of service.

Record
CVE-2026-45819
CVSS 4.0
6.6 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
Weakness
CWE-705, CWE-755
Updated
2026-11-02
EUVDEUVD-2026-57788 6.6

baseline-browser-mapping 2.x before 2.11.0 calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination, causing denial of service.

Record
EUVD-2026-57788
CVSS 4.0
6.6 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
Updated
2026-11-02
GitHub AdvisoriesGHSA-w5vr-8v7q-w6rv 6.6

baseline-browser-mapping process termination on invalid input causes denial of service

baseline-browser-mapping 2.x before 2.11.0 calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination, causing denial of service.

Record
GHSA-w5vr-8v7q-w6rv
CVSS 4.0
6.6 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
Weakness
CWE-705
Updated
2026-11-02
NVD 6.6

baseline-browser-mapping 2.x before 2.11.0 calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination, causing denial of service.

Record
CVE-2026-45819
CVSS 4.0
6.6 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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:N/AU:Y/R:U/V:D/RE:M/U:Amber
Weakness
CWE-705, CWE-755
Updated
2026-11-02
OSV 6.6

baseline-browser-mapping 2.x before 2.11.0 calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination, causing denial of service.

Record
CVE-2026-45819
CVSS 4.0
6.6 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
Weakness
CWE-705, CWE-755
Updated
2026-11-02
OSVGHSA-w5vr-8v7q-w6rv 6.6

baseline-browser-mapping process termination on invalid input causes denial of service

baseline-browser-mapping 2.x before 2.11.0 calls process.exit() instead of throwing on invalid or conflicting input parameters, and can trigger immediate process termination, causing denial of service.

Record
GHSA-w5vr-8v7q-w6rv
CVSS 4.0
6.6 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
Weakness
CWE-705
Updated
2026-11-02
Show 5 moreShow less
OSVRHSA-2026:54517 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Record
RHSA-2026:54517
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVRHSA-2026:54518 7.5

Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

Record
RHSA-2026:54518
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
OSVCLSA-2026-1791198699 No score

TuxCare security update for baseline-browser-mapping (1 CVE)

TuxCare rebuilt baseline-browser-mapping to address 1 CVE. Fixed in 2.10.0-tuxcare.2.

Record
CLSA-2026-1791198699
Updated
2026-11-02
OSVCLSA-2026-1791282757 No score

TuxCare security update for baseline-browser-mapping (1 CVE)

TuxCare rebuilt baseline-browser-mapping to address 1 CVE. Fixed in 2.10.38-tuxcare.1.

Record
CLSA-2026-1791282757
Updated
2026-11-02
OSVCLSA-2026-1792163954 No score

TuxCare security update for baseline-browser-mapping (1 CVE)

TuxCare rebuilt baseline-browser-mapping to address 1 CVE. Fixed in 2.10.34-tuxcare.1.

Record
CLSA-2026-1792163954
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
baseline-browser-mapping
npm
 2.0.0 up to 2.11.0
2.11.0
baseline-browser-mapping
TuxCare:npm
 2.10.0-tuxcare.0 up to 2.10.0-tuxcare.2, plus listed versions
2.10.02.10.0-tuxcare.1
2.10.0-tuxcare.2
baseline-browser-mapping
TuxCare:npm
 2.10.38-tuxcare.0 up to 2.10.38-tuxcare.1, plus listed versions
2.10.38
2.10.38-tuxcare.1
baseline-browser-mapping
TuxCare:npm
 2.10.34-tuxcare.0 up to 2.10.34-tuxcare.1, plus listed versions
2.10.34
2.10.34-tuxcare.1
grafana13.1
Red Hat:hummingbird:1
From an advisory covering 9 CVEs
 before 0:13.1.3-0.1.1.hum1
0:13.1.3-0.1.1.hum1
grafana12.4
Red Hat:hummingbird:1
From an advisory covering 5 CVEs
 before 0:12.4.8-0.1.1.hum1
0:12.4.8-0.1.1.hum1

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

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

In short

CVE-2026-45819 is a medium vulnerability (CVSS 6.6) in Web-platform-dx Baseline-browser-mapping, published August 13, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.51%, the 43rd percentile. Fixed in baseline-browser-mapping 2.11.0.

References

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