CVE-2026-47382
NocoDB: Server-Side Request Forgery via Database Connection Host
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, the connection-test endpoint opened a raw TCP socket to the user-supplied database host without resolving and range-checking the destination, so private and link-local addresses (including IPv4-mapped IPv6 forms and localhost) reached the driver. This vulnerability is fixed in 2026.05.1.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
NocoDB: Server-Side Request Forgery via Database Connection Host
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, the connection-test endpoint opened a raw TCP socket to the user-supplied database host without resolving and range-checking the destination, so private and link-local addresses (including IPv4-mapped IPv6 forms and localhost) reached the driver. This vulnerability is fixed in 2026.05.1.
- Record
CVE-2026-47382- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-918
- Updated
- 2026-11-02
EUVDEUVD-2026-38621
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, the connection-test endpoint opened a raw TCP socket to the user-supplied database host without resolving and range-checking the destination, so private and link-local addresses (including IPv4-mapped IPv6 forms and localhost) reached the driver. This vulnerability is fixed in 2026.05.1.
- Record
EUVD-2026-38621- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-w43h-r5m5-p832
NocoDB: Server-Side Request Forgery via Database Connection Host
Summary
The connection-test endpoint opened a raw TCP socket to the user-supplied database
host without resolving and range-checking the destination, so private and link-local
addresses (including IPv4-mapped IPv6 forms and localhost) reached the driver.
Details
A new validateDbConnectionHost helper resolves hostnames through DNS, parses each
address with ipaddr.js, normalises IPv4-mapped IPv6, and rejects addresses in the
private, loopback, link-local, unique-local, reserved, unspecified, broadcast, and
carrier-grade-NAT ranges. 0.0.0.0, ::, and the literal localhost are special-cased.
The check runs before the existing SSL block in the connection-test controller and
gates the driver invocation.
Impact
Authenticated users with connection-test permission could probe internal services (Redis, the cloud metadata endpoint, internal databases) reachable from the NocoDB process. A DNS rebinding attacker could still race the resolve-vs-connect window.
Credit
This issue was reported by @helwor-01.
- Record
GHSA-w43h-r5m5-p832- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-918
- Updated
- 2026-11-02
NVD
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, the connection-test endpoint opened a raw TCP socket to the user-supplied database host without resolving and range-checking the destination, so private and link-local addresses (including IPv4-mapped IPv6 forms and localhost) reached the driver. This vulnerability is fixed in 2026.05.1.
- Record
CVE-2026-47382- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Weakness
- CWE-918
- Updated
- 2026-11-02
OSV
NocoDB: Server-Side Request Forgery via Database Connection Host
NocoDB is software for building databases as spreadsheets. Prior to 2026.05.1, the connection-test endpoint opened a raw TCP socket to the user-supplied database host without resolving and range-checking the destination, so private and link-local addresses (including IPv4-mapped IPv6 forms and localhost) reached the driver. This vulnerability is fixed in 2026.05.1.
- Record
CVE-2026-47382- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-918
- Updated
- 2026-11-04
OSVGHSA-w43h-r5m5-p832
NocoDB: Server-Side Request Forgery via Database Connection Host
Summary
The connection-test endpoint opened a raw TCP socket to the user-supplied database
host without resolving and range-checking the destination, so private and link-local
addresses (including IPv4-mapped IPv6 forms and localhost) reached the driver.
Details
A new validateDbConnectionHost helper resolves hostnames through DNS, parses each
address with ipaddr.js, normalises IPv4-mapped IPv6, and rejects addresses in the
private, loopback, link-local, unique-local, reserved, unspecified, broadcast, and
carrier-grade-NAT ranges. 0.0.0.0, ::, and the literal localhost are special-cased.
The check runs before the existing SSL block in the connection-test controller and
gates the driver invocation.
Impact
Authenticated users with connection-test permission could probe internal services (Redis, the cloud metadata endpoint, internal databases) reachable from the NocoDB process. A DNS rebinding attacker could still race the resolve-vs-connect window.
Credit
This issue was reported by @helwor-01.
- Record
GHSA-w43h-r5m5-p832- CVSS 4.0
- 5.3 Medium
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-918
- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-47382 is a medium vulnerability (CVSS 5.3) in Nocodb, published June 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.35%, the 28th percentile. Fixed in nocodb 2026.05.1.