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CVE-2026-17603

Nexus Repository 3 - HikariCP connectionInitSql Injection RCE via DataStore Configuration API

HIGH

8.8

CVSS Score

Published: August 7, 2026 at 04:07 PM UTC

Updated: October 23, 2026 at 08:10 PM UTC

1 product affected across 1 vendorNexus Repository Manager

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Severity

HIGH8.8

Exploit prediction

EPSS 0.9%

SSVC

No known exploit

Description

Nexus Repository 3 did not sufficiently restrict which HikariCP connection-pool properties could be set through the DataStore configuration API. A user holding the nx-datastores-update permission could set the connectionInitSql property to execute arbitrary SQL against the configured database on every new connection. On the default H2 database backend, this could be leveraged to achieve remote code execution as the Nexus process user.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Nexus Repository Manager · Sonatype

95%

3.20.0 ≤ v < 3.95.03.20.0 3.20.1 3.20.2 3.20.3 3.21.0 3.21.1 3.21.2 3.22.0 3.22.1 3.23.0 3.24.0 3.24.1 3.25.0 3.25.1 3.26.0 3.26.1 3.27.0 3.28.0 3.28.1 3.29.0 3.29.1 3.29.2 3.30.0 3.30.1 3.31.0 3.31.1 3.32.0 3.32.1 3.33.0 3.33.1 3.34.0 3.34.1 3.35.0 3.36.0 3.37.0 3.37.1 3.37.2 3.37.3 3.38.0 3.38.1 3.39.0 3.40.0 3.40.1 3.41.0 3.41.1 3.42.0 3.43.0 3.44.0 3.45.0 3.45.1 3.46.0 3.47.0 3.47.1 3.48.0 3.49.0 3.50.0 3.51.0 3.52.0 3.53.0 3.53.1 3.54.0 3.54.1 3.55.0 3.56.0 3.57.0 3.57.1 3.58.0 3.58.1 3.59.0 3.60.0 3.61.0 3.62.0 3.63.0 3.64.0 3.65.0 3.66.0 3.67.0 3.67.1 3.68.0 3.68.1 3.69.0 3.70.0 3.70.1 3.71.0 3.72.0 3.73.0 3.74.0 3.75.0 3.75.1 3.76.0 3.76.1 3.77.0 3.77.1 3.77.2 3.78.0 3.78.1 3.78.2 3.78.3 3.79.0 3.79.1 3.80.0 3.81.0 3.81.1 3.82.0 3.82.1 3.83.0 3.83.1 3.83.2 3.84.0 3.84.1 3.84.2 3.85.0 3.85.1 3.86.0 3.86.1 3.86.2 3.86.3 3.87.0 3.87.1 3.87.2 3.88.0 3.88.1 3.89.0 3.89.1 3.90.0 3.90.1 3.90.2 3.90.3 3.90.4 3.91.0 3.91.1 3.92.0 3.92.1 3.92.2 3.92.3 3.93.0 3.93.1 3.93.2 3.94.0 3.94.1

Affected range stops below 3.95.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (2)

PatchRelease Notes

Source: cverecord

https://help.sonatype.com/en/sonatype-nexus-repository-3-95-0-release-notes.html

Vendor Advisory

Source: cverecord

https://support.sonatype.com/hc/en-us/articles/53890127489427/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGH[email protected]

Attack Vector: NETWORK
Complexity: LOW
Privileges: LOW
User Interaction: NONE
Scope: UNCHANGED
Confidentiality: HIGH
Integrity: HIGH
Availability: HIGH

Vector?

Quick Info

StatusANALYZED

CWE

CWE-94

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