CVE-2020-13788
Harbor is vulnerable to a limited Server-Side Request Forgery (SSRF) (CVE-2020-13788)
Harbor prior to 2.0.1 allows SSRF with this limitation: an attacker with the ability to edit projects can scan ports of hosts accessible on the Harbor server's intranet.
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
- None
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
Harbor prior to 2.0.1 allows SSRF with this limitation: an attacker with the ability to edit projects can scan ports of hosts accessible on the Harbor server's intranet.
- Record
CVE-2020-13788- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-918
- Updated
- 2026-11-02
CVE List No score
Harbor prior to 2.0.1 allows SSRF with this limitation: an attacker with the ability to edit projects can scan ports of hosts accessible on the Harbor server's intranet.
- Record
CVE-2020-13788- Updated
- 2026-11-02
EUVDEUVD-2022-0773 No score
Harbor prior to 2.0.1 allows SSRF with this limitation: an attacker with the ability to edit projects can scan ports of hosts accessible on the Harbor server's intranet.
- Record
EUVD-2022-0773- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-33p6-fx42-7rf5
Harbor is vulnerable to a limited Server-Side Request Forgery (SSRF) (CVE-2020-13788)
Impact
Matt Hamilton from Soluble has discovered a limited Server-Side Request Forgery (SSRF) that allowed Harbor project owners to scan the TCP ports of hosts on the Harbor server's internal network.
The vulnerability was immediately fixed by the Harbor team.
Issue
The “Test Endpoint” API, part of the functionality for ensuring a project Webhook is accessible and functional, is vulnerable to a limited SSRF attack. A malicious user that is also a project administrator can use this API for internal port scanning.
Known Attack Vectors
Successful exploitation of this issue will lead to bad actors identifying open TCP ports on any network that is accessible by the Harbor core services
Patches
If your product uses the affected releases of Harbor, update to version 2.0.1 to patch this issue immediately.
https://github.com/goharbor/harbor/releases/tag/v2.0.1
Workarounds
Since only project administrators (the user that created the project) are allowed to test the webhook endpoints configured in Harbor, a Harbor system administrator can control who is a project admin. In addition, Harbor system administrators can enforce a setting where only an administrator is allowed to create new projects instead of the default Everyone. This further restricts who can be a project administrator in Harbor.
For more information
If you have any questions or comments about this advisory, contact [email protected] View our security policy at https://github.com/goharbor/harbor/security/policy https://nvd.nist.gov/vuln/detail/CVE-2020-13788 https://www.soluble.ai/blog/harbor-ssrf-cve-2020-13788
- Record
GHSA-33p6-fx42-7rf5- CVSS 3.1
- 4.0 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C - Weakness
- CWE-918
- Updated
- 2026-11-02
OSV
Harbor prior to 2.0.1 allows SSRF with this limitation: an attacker with the ability to edit projects can scan ports of hosts accessible on the Harbor server's intranet.
- Record
CVE-2020-13788- CVSS 3.1
- 4.3 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-33p6-fx42-7rf5
Harbor is vulnerable to a limited Server-Side Request Forgery (SSRF) (CVE-2020-13788)
Impact
Matt Hamilton from Soluble has discovered a limited Server-Side Request Forgery (SSRF) that allowed Harbor project owners to scan the TCP ports of hosts on the Harbor server's internal network.
The vulnerability was immediately fixed by the Harbor team.
Issue
The “Test Endpoint” API, part of the functionality for ensuring a project Webhook is accessible and functional, is vulnerable to a limited SSRF attack. A malicious user that is also a project administrator can use this API for internal port scanning.
Known Attack Vectors
Successful exploitation of this issue will lead to bad actors identifying open TCP ports on any network that is accessible by the Harbor core services
Patches
If your product uses the affected releases of Harbor, update to version 2.0.1 to patch this issue immediately.
https://github.com/goharbor/harbor/releases/tag/v2.0.1
Workarounds
Since only project administrators (the user that created the project) are allowed to test the webhook endpoints configured in Harbor, a Harbor system administrator can control who is a project admin. In addition, Harbor system administrators can enforce a setting where only an administrator is allowed to create new projects instead of the default Everyone. This further restricts who can be a project administrator in Harbor.
For more information
If you have any questions or comments about this advisory, contact [email protected] View our security policy at https://github.com/goharbor/harbor/security/policy https://nvd.nist.gov/vuln/detail/CVE-2020-13788 https://www.soluble.ai/blog/harbor-ssrf-cve-2020-13788
- Record
GHSA-33p6-fx42-7rf5- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N/E:P/RL:O/RC:C - Weakness
- CWE-918
- Updated
- 2026-11-02
OSVBIT-harbor-2020-13788 No score
Harbor prior to 2.0.1 allows SSRF with this limitation: an attacker with the ability to edit projects can scan ports of hosts accessible on the Harbor server's intranet.
- Record
BIT-harbor-2020-13788- Updated
- 2026-11-02
OSVGO-2022-0781 No score
Harbor is vulnerable to a limited Server-Side Request Forgery (SSRF) (CVE-2020-13788) in github.com/goharbor/harbor
Harbor is vulnerable to a limited Server-Side Request Forgery (SSRF) (CVE-2020-13788) in github.com/goharbor/harbor
- Record
GO-2022-0781- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/goharbor/harborGo |
1.8.0 up to 2.0.1 | 2.0.1 |
harborBitnami |
before 2.0.1 | 2.0.1 |
github.com/goharbor/harborGo |
1.8.0 up to 2.0.1+incompatible | 2.0.1+incompatible |
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-2020-13788 is a medium vulnerability (CVSS 4.3) in Linuxfoundation Harbor, published July 15, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.30%, the 70th percentile. Fixed in github.com/goharbor/harbor 2.0.1.