CVE-2026-61742Public exploitNetwork attack vectorHinoki check available

Unauthenticated SQL execution via HTTP DNS rebinding

Published Sep 24, 2026 · Updated Sep 24, 2026

Origin validation errors in Bytebase DBHub 0.22.4 and earlier allow remote attackers to invoke MCP tools through DNS rebinding. The src/server.ts middleware trusts any Origin hostname equal to Host and reflects that Origin into CORS, so a rebound attacker-controlled name passes. Exploitation requires opt-in HTTP transport and a victim visit to a malicious site; exposed MCP permissions then determine database read or write access.

CVSS severityUnavailable
Unscored
EPSS probability0.20%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Origin validation errors in Bytebase DBHub 0.22.4 and earlier allow remote attackers to invoke MCP tools through DNS rebinding. The src/server.ts middleware trusts any Origin hostname equal to Host and reflects that Origin into CORS, so a rebound attacker-controlled name passes. Exploitation requires opt-in HTTP transport and a victim visit to a malicious site; exposed MCP permissions then determine database read or write access.

The record

CVE
CVE-2026-61742
Published
Sep 24, 2026
Updated
Sep 24, 2026
Vendor
Bytebase
Product
DBHub
Classifications
CWE-346, CWE-306, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 24, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.22.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Bytebase · DBHubversion=< 0.22.5

Published CVSS scores

No CVSS assessment is available in this record.

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-346Origin Validation Error
CWE-306Missing Authentication for Critical Function
T1189Drive-by Compromise

Public exploit references

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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