CVE-2026-103387

mediumpriority · track · 17EPSS 0.003 · 24 %ileFR

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.32% (24th) EPSS

CVSS 4.3 · medium

Is it mine?

0 products

Check your exposure

Who says so?

1 sources

certfr

EPSS · scored 2026-10-23

A weakness has been identified in garycourt uri-js up to 4.4.1. This affects the function URI.parse of the file src/schemes/mailto.ts of the component Mailto Header Handler. This manipulation of the argument to causes uncaught exception. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

cvss

Technical severity, 0–10. One row per scoring source.

5.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.3–5

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:Lprimary · cna@vuldb.comexploitability 2.8 · impact 1.4

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Psecondary · cna@vuldb.comexploitability 10 · impact 2.9

v4.02.1lowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/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:Xsecondary · cna@vuldb.com

v4.01.3lowCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/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:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-248USprimary

affected products

Products and version ranges known to be affected.

No affected products recorded.

advisories (1)

Vendor and ecosystem advisories describing this.

CERTFR-2026-AVI-1378Multiples vulnérabilités dans les produits IBMFrançais2026-10-23vendor · certfrFR

sources

Which sources assert this record, and when.

certfr NVD CVE.org MITRE

published 2026-09-30modified 2026-10-01

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+431 more

references (6) nvd

External citations — patches, advisories, analysis.

scry

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