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TI-2026-53869 Aliases CVE-2026-77125GHSA-mgww-mhp8-f89c

Nexus Repository 3 - Incorrect Authorization on Blobstore Group Endpoints

Priority LOW 31CWE-863Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.

Summary

A vulnerability was identified in Sonatype Nexus Repository 3 in which two blobstore group management REST API endpoints did not correctly enforce the intended authorization check. A user granted only the nexus:blobstores:create permission could invoke these endpoints to convert an existing blobstore into a group blobstore, an action that should require the nexus:blobstores:update permission instead. This could result in unauthorized modification of blobstore configuration without administrator approval. The nexus:blobstores:create permission is a named permission that must be explicitly granted by an administrator; it is not held by default.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00288 21st percentileScored 2026-11-07
Fix Fixed Nexus Repository 3 (Sonatype): 3.96.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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 Repository 33.19.0 to before 3.96.03.96.0Patch availableCNA
  • Nexus Repository 3 VendorSonatype Affected 3.19.0 to before 3.96.0 Fixed in 3.96.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:*3.19.0 to before 3.96.0VulnerableSonatype
  • cpe:2.3:a:sonatype:nexus_repository_manager:*:*:*:*:*:*:*:* Versions 3.19.0 to before 3.96.0 Vulnerable ·Sonatype

Remediation

  • Fix · CNA Nexus Repository 3 (Sonatype) Fixed in 3.96.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Sonatype Nexus Repository 3 3.96.0

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-53868 Nexus Repository 3 - Script Execution Disable Setting Not EnforcedPriority LOW 36
    • TI-2026-53867 Nexus Repository 3 - Webhook Secret Disclosure via Capability Read APIPriority LOW 27
    • TI-2026-53866 Incorrect authorization in Sonatype Nexus Repository 3Priority LOW 24
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-77125
  2. 2026-10-03 Alias added: GHSA-mgww-mhp8-f89c

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