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TI-2026-14424 Aliases CVE-2026-17593GHSA-rw8g-2688-625j

Nexus Repository - Arbitrary Class Instantiation via Unsafe Realm Configuration

Priority LOW 35CWE-470Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

An account holding the nexus:settings:update permission in Nexus Repository 3 (or the equivalent nexus:settings permission in the legacy Nexus Repository 2) could submit arbitrary values as realm identifiers through an internal configuration API that did not validate them against the set of registered realms. Because unrecognized entries were persisted and re-evaluated on every realm load via a legacy code path, this could result in unintended code executing inside the Nexus Repository process, and in some cases a persistent authentication lockout that was not visible through the administrative UI.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00773 55th percentileScored 2026-11-07
Fix Fixed Nexus Repository (Sonatype): 3.95.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SonatypeNexus Repository2.8.0 to before 3.95.03.95.0Patch availableCNA
  • Nexus Repository VendorSonatype Affected 2.8.0 to before 3.95.0 Fixed in 3.95.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:*2.8.0 to before 3.95.0VulnerableSonatype
  • cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:* Versions 2.8.0 to before 3.95.0 Vulnerable ·Sonatype

Remediation

  • Fix · CNA Nexus Repository (Sonatype) Fixed in 3.95.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-17593
  2. 2026-10-03 Alias added: GHSA-rw8g-2688-625j

References

Patch 1

Advisory 1

  • TI-2019-05133 Sonatype Nexus Repository Manager before 3.15.0 has Incorrect Access Control. KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-03883 OS command injection in Nexus Repository Manager CVSS 3.0HIGH 8.8
  • TI-2026-02763 Nexus Repository 3 - Authenticated Remote Code Execution via Task Property Injection CVSS 4.0CRITICAL 9.4
  • TI-2026-04532 Nexus Repository 3 - Hardcoded Credential in Internal Database Component CVSS 4.0CRITICAL 9.2
  • TI-2021-15218 Multiple XSS issues exist in Sonatype Nexus Repository Manager 3 before 3.33.0. CVSS 3.1MEDIUM 5.4
  • TI-2019-07044 Sonatype Nexus Repository Manager before 3.17.0 establishes a default administrator user… CVSS 3.0CRITICAL 9.8
See all 63 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences