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TI-2026-15018 Aliases CVE-2026-18265GHSA-8p2m-xq5p-3g6w

Missing authentication in OSNEXUS QuantaStor

Priority MEDIUM 51CWE-306Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA. Impact type from CWE-306.

Summary

OSNEXUS QuantaStor Missing Authentication Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of OSNEXUS QuantaStor. Authentication is not required to exploit this vulnerability. The specific flaw exists within the configuration of Kapacitor. The issue results from the lack of authentication prior to allowing access to functionality. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-30036.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01037 64th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
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
OSNEXUSQuantaStor6.7.3.010+9c965a6414—No fix listedCNA
  • QuantaStor VendorOSNEXUS Affected 6.7.3.010+9c965a6414 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:*——OSNEXUS
  • cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:* Versions — — ·OSNEXUS

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-18265
  2. 2026-10-03 Alias added: GHSA-8p2m-xq5p-3g6w

References

Other 1

  • TI-2021-03263 Authenticated Remote COmmand Execution as root in OSNEXUS QuantaStor version 6.0.0.355 and others CVSS 3.1CRITICAL 9.1
  • TI-2026-09340 Unauthenticated SQL Injection in Osnexus Quantastor CVSS 3.1CRITICAL 9.8
  • TI-2021-18590 Authenticated Remote Command Execution vulnerability in OSNEXUS QuantaStor before 6.0.0.355 CVSS 3.1CRITICAL 9.1
  • TI-2021-18592 Authenticated Stored XSS in OSNEXUS QuantaStor 6.0.0.335 CVSS 3.1HIGH 8.7
  • TI-2021-18591 Local Privilege Escalation to root in OSNEXUS QuantaStor before 6.0.0.355 CVSS 3.1HIGH 7.8
  • TI-2021-18589 Reflected XSS vulnerability in OSNEXUS QuantaStor before 6.0.0.355 CVSS 3.1HIGH 7.4
See all 9 →

Sources

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