CVE-2026-47380
NocoDB: User Enumeration via Sign-In Timing
NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, sign-in response timing differed between known and unknown email addresses because the unknown-user branch returned without performing a password hash comparison. This vulnerability is fixed in 2026.04.1.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
NocoDB: User Enumeration via Sign-In Timing
NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, sign-in response timing differed between known and unknown email addresses because the unknown-user branch returned without performing a password hash comparison. This vulnerability is fixed in 2026.04.1.
- Record
CVE-2026-47380- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-208, CWE-307
- Updated
- 2026-11-02
EUVDEUVD-2026-38624
NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, sign-in response timing differed between known and unknown email addresses because the unknown-user branch returned without performing a password hash comparison. This vulnerability is fixed in 2026.04.1.
- Record
EUVD-2026-38624- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-jr54-jwhj-55gp
NocoDB: User Enumeration via Sign-In Timing
Summary
Sign-in response timing differed between known and unknown email addresses because the unknown-user branch returned without performing a password hash comparison.
Details
The unknown-user branch in auth.service.ts now performs a bcrypt.compare against
a fixed dummy hash so the response time of failed sign-ins is approximately
independent of whether the address exists. Rate limiting on the sign-in endpoint is
implemented in the Enterprise build only and is not affected by this advisory.
Impact
A network-positioned attacker could enumerate registered email addresses by timing sign-in responses. Exploitation requires only the ability to send unauthenticated sign-in requests.
Credit
This issue was reported by @AndyAnh174.
- Record
GHSA-jr54-jwhj-55gp- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/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-208, CWE-307
- Updated
- 2026-11-02
NVD
NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, sign-in response timing differed between known and unknown email addresses because the unknown-user branch returned without performing a password hash comparison. This vulnerability is fixed in 2026.04.1.
- Record
CVE-2026-47380- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/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-208, CWE-307
- Updated
- 2026-11-02
OSV
NocoDB: User Enumeration via Sign-In Timing
NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, sign-in response timing differed between known and unknown email addresses because the unknown-user branch returned without performing a password hash comparison. This vulnerability is fixed in 2026.04.1.
- Record
CVE-2026-47380- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-208, CWE-307
- Updated
- 2026-11-04
OSVGHSA-jr54-jwhj-55gp
NocoDB: User Enumeration via Sign-In Timing
Summary
Sign-in response timing differed between known and unknown email addresses because the unknown-user branch returned without performing a password hash comparison.
Details
The unknown-user branch in auth.service.ts now performs a bcrypt.compare against
a fixed dummy hash so the response time of failed sign-ins is approximately
independent of whether the address exists. Rate limiting on the sign-in endpoint is
implemented in the Enterprise build only and is not affected by this advisory.
Impact
A network-positioned attacker could enumerate registered email addresses by timing sign-in responses. Exploitation requires only the ability to send unauthenticated sign-in requests.
Credit
This issue was reported by @AndyAnh174.
- Record
GHSA-jr54-jwhj-55gp- CVSS 4.0
- 6.3 Medium
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/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-208, CWE-307
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
nocodbnpm |
before 2026.04.1 | 2026.04.1 |
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-2026-47380 is a medium vulnerability (CVSS 6.3) in Nocodb, published June 5, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.31%, the 24th percentile. Fixed in nocodb 2026.04.1.