major vulnerability· requires attention

Nexus Repository is widely used in software supply chains; this auth-bypass allows admin impersonation and full repo control, risking build/artifact integrity across organizations.

Applications

CVE-2026-113374

8.6

High

EPSS n/aPatch available

Auth bypass in Sonatype Nexus Repository enabling admin impersonation via header auth.

exploited

No known exploitation not in CISA KEV as of our last sync

fix

Patch available see the advisory in the references

likelihood

No EPSS score yet

Published 4 Nov 2026Analysed here 5 Nov 2026CVSS scored by the publisher (CNA)

common questions

Is CVE-2026-113374 being exploited?

Not confirmed. CVE-2026-113374 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked.

How severe is CVE-2026-113374?

CVE-2026-113374 is rated High with a CVSS score of 8.6. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2026-113374?

Yes. A fix has been recorded for CVE-2026-113374. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2026-113374 affect?

CVE-2026-113374 affects Sonatype Nexus Repository 3. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

What should I do about CVE-2026-113374?

Upgrade to patched Nexus 3 release and revoke/restrict nexus:capabilities:create permission.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary

technical analysis

affected

Sonatype Nexus Repository 3

impact

Remote authentication bypass: attacker can create header-auth capability and impersonate admins, gaining full repository control and compromising artifacts.

action required

Immediate action required

affected versions

Sonatype Nexus Repository 3

affected>= 3.0.0 and < 3.98.0

As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.

timeline

4 Nov 2026Published
4 Nov 2026CVE record last updated · same day later
5 Nov 2026Analysed by vulneraibility.com · same day later

how to fix

Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.

references

NVD CVE.org CVE Details Source

2 references in the CVE record: 1 advisory, 1 patch

Advisorysupport.sonatype.com /hc/en-us/articles/56616522124435/
Patchhelp.sonatype.com /en/sonatype-nexus-repository-3-98-0-release-notes.html

sources

CVE List (CVE.org): description, affected versions, references; CVE Terms of Use
NVD: CVSS and CPE data
FIRST EPSS: exploit probability and percentile
Summary, impact and triage tags: written by our AI analysis pipeline from the sources above. Check them against the sources.

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