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Incorrect authorization in Vearch lets users bypass read-only roles

Priority HIGH 73CWE-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
High · High · High
Fix status
No fix listed

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

Summary

Vearch 3.5.2 through 3.5.9 contains an incorrect authorization flaw (CWE-863) in its role permission check, which ignores stored ReadOnly or None privilege levels for listed resources. An authenticated non-root user can upsert and delete documents despite read-only access, or grant their own role WriteRead privileges, which can escalate toward cluster administrator access.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

Vearch 3.5.2 through 3.5.9 contains an incorrect authorization vulnerability in Role.HasPermissionForResources that ignores stored ReadOnly or None privilege levels for resources listed in a role. Authenticated non-root users can upsert and delete documents with read-only access, or call PUT /roles to grant their role WriteRead privileges, escalating toward cluster administrator access.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0036 29th 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
Poc
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
Vearchvearch3.5.2 – 3.5.9—No fix listedCNA
  • vearch VendorVearch Affected 3.5.2 – 3.5.9 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Vearch.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-11 Threatist record created from CVE-2026-108746
  2. 2026-10-11 Alias added: GHSA-73v4-h56h-crx9
  3. 2026-10-12 Priority changed: MEDIUM → LOW
  4. 2026-10-13 CISA SSVC decision points changed
  5. 2026-10-13 Priority changed: LOW → HIGH
  6. 2026-11-06 Affected versions changed · Red Hat
  7. 2026-11-06 CVSS score added · Red Hat

References

Sources