CVE-2020-15230
Arbitrary file read un Vapor
Vapor is a web framework for Swift. In Vapor before version 4.29.4, Attackers can access data at arbitrary filesystem paths on the same host as an application. Only applications using FileMiddleware are affected. This is fixed in version 4.29.4.
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
- Low
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Arbitrary file read un Vapor
Vapor is a web framework for Swift. In Vapor before version 4.29.4, Attackers can access data at arbitrary filesystem paths on the same host as an application. Only applications using FileMiddleware are affected. This is fixed in version 4.29.4.
- Record
CVE-2020-15230- CVSS 3.1
- 8.5 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
EUVDEUVD-2023-1889
Vapor is a web framework for Swift. In Vapor before version 4.29.4, Attackers can access data at arbitrary filesystem paths on the same host as an application. Only applications using FileMiddleware are affected. This is fixed in version 4.29.4.
- Record
EUVD-2023-1889- CVSS 3.1
- 8.5 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vcvg-xgr8-p5gq
Arbitrary file read using percent-encoded relative paths in FileMiddleware
Impact
Attackers can access data at arbitrary filesystem paths on the same host as an application using FileMiddleware.
Patches
Version 4.29.4
Workarounds
Upgrade to 4.24.4 or later, or disable FileMiddleware.
References
- Introduced in https://github.com/vapor/vapor/pull/2223
- Fixed by https://github.com/vapor/vapor/pull/2500
For more information
If you have any questions or comments about this advisory:
- Open an issue
- Email us at [email protected]
- Record
GHSA-vcvg-xgr8-p5gq- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
NVD
Vapor is a web framework for Swift. In Vapor before version 4.29.4, Attackers can access data at arbitrary filesystem paths on the same host as an application. Only applications using FileMiddleware are affected. This is fixed in version 4.29.4.
- Record
CVE-2020-15230- CVSS 3.1
- 8.5 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
OSV
Vapor is a web framework for Swift. In Vapor before version 4.29.4, Attackers can access data at arbitrary filesystem paths on the same host as an application. Only applications using FileMiddleware are affected. This is fixed in version 4.29.4.
- Record
CVE-2020-15230- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-vcvg-xgr8-p5gq
Arbitrary file read using percent-encoded relative paths in FileMiddleware
Impact
Attackers can access data at arbitrary filesystem paths on the same host as an application using FileMiddleware.
Patches
Version 4.29.4
Workarounds
Upgrade to 4.24.4 or later, or disable FileMiddleware.
References
- Introduced in https://github.com/vapor/vapor/pull/2223
- Fixed by https://github.com/vapor/vapor/pull/2500
For more information
If you have any questions or comments about this advisory:
- Open an issue
- Email us at [email protected]
- Record
GHSA-vcvg-xgr8-p5gq- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-22
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/vapor/vaporSwiftURL |
4.0.0-rc.2.5 up to 4.29.4 | 4.29.4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| 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-2020-15230 is a high vulnerability (CVSS 8.5) in Vapor, published October 2, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.53%, the 74th percentile. Fixed in github.com/vapor/vapor 4.29.4.