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TI-2019-08561 Aliases CVE-2019-11467GHSA-mrc2-3r75-vvg6

In Couchbase Server 4.6.3 and 5.5.0, secondary indexing encodes the entries to be indexed…

Priority LOW 36CWE-119Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

In Couchbase Server 4.6.3 and 5.5.0, secondary indexing encodes the entries to be indexed using collatejson. When index entries contain certain characters like \t, <, >, it caused buffer overrun as encoded string would be much larger than accounted for, causing indexer service to crash and restart. This has been remedied in versions 5.1.2 and 5.5.2 to ensure buffer always grows as needed for any input.

Why it matters now

EPSS 0.01344 71st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:couchbase:couchbase_server:4.6.3:*:*:*:*:*:*:*4.6.3VulnerableCouchbase
cpe:2.3:a:couchbase:couchbase_server:5.5.0:*:*:*:*:*:*:*5.5.0VulnerableCouchbase
  • cpe:2.3:a:couchbase:couchbase_server:4.6.3:*:*:*:*:*:*:* Versions 4.6.3 Vulnerable ·Couchbase
  • cpe:2.3:a:couchbase:couchbase_server:5.5.0:*:*:*:*:*:*:* Versions 5.5.0 Vulnerable ·Couchbase

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-11467
  2. 2026-10-03 Alias added: GHSA-mrc2-3r75-vvg6

References

Advisory 1

  • TI-2024-00478 Out-of-bounds read in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-02885 Type confusion in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-01910 Type confusion in Google Chrome KEVCVSS 3.1HIGH 8.8
  • TI-2023-27712 Python-cryptography: bleichenbacher timing oracle attack against rsa decryption - incomplete fix for cve-2020-25659 CVSS 3.1HIGH 7.5
  • TI-2020-15177 Exposed Erlang Cookie could lead to Remote Command Execution (RCE) attack. CVSS 3.1CRITICAL 9.8
  • TI-2023-27298 An issue was discovered in Couchbase Server before 7.2.4. CVSS 3.1CRITICAL 9.8
See all 62 →

Sources

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