Is CVE-2026-11403 in the CISA KEV catalog?

No. CVE-2026-11403 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-11403?

CVE-2026-11403 has a CVSS v4 base score of 8.7 (HIGH).

What is the EPSS score for CVE-2026-11403?

CVE-2026-11403 has an EPSS score of 0.35% (27th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2026-11403?

No published fix for CVE-2026-11403 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2026-11403

HIGH

8.7

CVSS v4

NVD

Description

A vulnerability in Sonatype Nexus Repository Manager's format-specific API key generation may allow a remote attacker to gain unauthorized access to repository operations as a targeted user. A format-specific API key realm (NuGet API Key, Docker Bearer Token, or npm Bearer Token) must be enabled and the targeted user must have an active API key for this vulnerability to be exploitable.

CWE-331

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

TridentStack Control tracks known vulnerabilities across your Windows, macOS, and Linux fleet and shows the fix as soon as one is published. See how it works

CVSS v4 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

Impact

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/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

Exploit Intelligence

0.35%probability of exploitation in 30 days

27thpercentile

Low risk: more likely to be exploited than 27% of all known CVEs.

References

Other references2

Related Vulnerabilities

Other CWE-331 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2008-1447	Medium	6.8	95%	-	Fix
CVE-2018-18326	High	7.5	54%	-	-
CVE-2018-15812	High	7.5	47%	-	-
CVE-2023-38357	Medium	5.3	5.3%	-	Fix
CVE-2015-3405	High	7.5	5.3%	-	Fix
CVE-2008-2108	Critical	9.8	4.3%	-	Fix

Embed a live status badge for CVE-2026-11403

Markdown

[![CVE-2026-11403](https://tridentstack.com/cve/badge/CVE-2026-11403.svg)](https://tridentstack.com/cve/CVE-2026-11403)

HTML

<a href="https://tridentstack.com/cve/CVE-2026-11403"><img src="https://tridentstack.com/cve/badge/CVE-2026-11403.svg" alt="CVE-2026-11403"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

See how it works Start freeThis CVE lookup is free and always will be.

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-07-15.