CVE-2023-49930Network attack vector

Unauthenticated internal endpoint access via Eventing cURL

Published Feb 28, 2024 · Updated Mar 28, 2025

SSRF in Couchbase Server before 7.2.4 allows remote attackers to reach the local /diag/eval endpoint through Eventing SQL++ cURL. The Eventing Service fails to prevent SQL++ cURL requests from targeting the server's localhost /diag/eval endpoint, crossing an intended host restriction. CISA assesses that no privileges or user interaction are required, but Couchbase has not published the evaluated operation or a more specific resulting action.

CVSS severity9.8
Critical
EPSS probability0.90%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Couchbase Server before 7.2.4 allows remote attackers to reach the local /diag/eval endpoint through Eventing SQL++ cURL. The Eventing Service fails to prevent SQL++ cURL requests from targeting the server's localhost /diag/eval endpoint, crossing an intended host restriction. CISA assesses that no privileges or user interaction are required, but Couchbase has not published the evaluated operation or a more specific resulting action.

The record

CVE
CVE-2023-49930
Published
Feb 28, 2024
Updated
Mar 28, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 28, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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