CVE-2026-61742 / CVE-2026-61788: DBHub MCP HTTP DNS rebinding and read-only mode bypass
- Product
- @bytebase/dbhub (npm)
- CVE
- CVE-2026-61742, CVE-2026-61788
- Affected
- < 0.22.6
- Fixed in
- 0.22.6
Last verified against sources: October 16, 2026
Am I affected?
@bytebase/dbhub (npm): affected < 0.22.6. Fixed in 0.22.6.
What to do now
- Upgrade @bytebase/dbhub to 0.22.6 or later. [2]
General practice, not from the source: if the affected software could read tokens or credentials, rotate them after upgrading; pin versions and review changes before updating tools your agents run.
What happened
- According to GitHub Advisory Database's advisory (Sept 24, 2026), DBHub's HTTP transport checked only whether the Origin hostname matched the Host hostname, which did not stop DNS rebinding (CVE-2026-61742). [1]
- In addition, setting readonly = true on execute_sql left the database-level read-only setting unpopulated, relying only on a first-keyword check (CVE-2026-61788). [2]
Impact
What was done
Sources
- GHSA-fm8p-53ww-hf6w (CVE-2026-61742) — GitHub Advisory Database
- GHSA-mwwr-p57h-56pf (CVE-2026-61788) — GitHub Advisory Database
Every statement above was checked against these sources before publishing. Spotted an error? Tell us and we will correct it with a dated note.
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[CVE-2026-61742, CVE-2026-61788] CVE-2026-61742 / CVE-2026-61788: DBHub MCP HTTP DNS rebinding and read-only mode bypass
Product: @bytebase/dbhub (npm) | Affected: < 0.22.6 | Fixed in: 0.22.6
Summary: According to GitHub Advisory Database's advisory (Sept 24, 2026), DBHub's HTTP transport checked only whether the Origin hostname matched the Host hostname, which did not stop DNS rebinding (CVE-2026-61742).
Source & remediation on AgentArmorHQ: https://agentarmorhq.com/incidents/2026/09/cve-2026-61742-61788-bytebase-dbhub-mcpCorrections
Report an error or request a correction. We review requests within 5 business days and add a dated correction note.
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