CVE-2020-13597
Calico nodes IPv6 traffic redirection from route advertisment
Clusters using Calico (version 3.14.0 and below), Calico Enterprise (version 2.8.2 and below), may be vulnerable to information disclosure if IPv6 is enabled but unused. A compromised pod with sufficient privilege is able to reconfigure the node’s IPv6 interface due to the node accepting route advertisement by default, allowing the attacker to redirect full or partial network traffic from the node to the compromised pod.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
6.0
Calico nodes IPv6 traffic redirection from route advertisment
Clusters using Calico (version 3.14.0 and below), Calico Enterprise (version 2.8.2 and below), may be vulnerable to information disclosure if IPv6 is enabled but unused. A compromised pod with sufficient privilege is able to reconfigure the node’s IPv6 interface due to the node accepting route advertisement by default, allowing the attacker to redirect full or partial network traffic from the node to the compromised pod.
- Record
CVE-2020-13597- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L - Weakness
- CWE-201
- Updated
- 2026-11-02
EUVDEUVD-2022-1122
6.0
Clusters using Calico (version 3.14.0 and below), Calico Enterprise (version 2.8.2 and below), may be vulnerable to information disclosure if IPv6 is enabled but unused. A compromised pod with sufficient privilege is able to reconfigure the node’s IPv6 interface due to the node accepting route advertisement by default, allowing the attacker to redirect full or partial network traffic from the node to the compromised pod.
- Record
EUVD-2022-1122- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-pf59-j7c2-rh6x
6.0
Exposure of Sensitive Information to an Unauthorized Actor and Insertion of Sensitive Information Into Sent Data in Calico
Clusters using Calico (version 3.14.0 and below), Calico Enterprise (version 2.8.2 and below), may be vulnerable to information disclosure if IPv6 is enabled but unused. A compromised pod with sufficient privilege is able to reconfigure the node’s IPv6 interface due to the node accepting route advertisement by default, allowing the attacker to redirect full or partial network traffic from the node to the compromised pod.
- Record
GHSA-pf59-j7c2-rh6x- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L - Weakness
- CWE-200, CWE-201
- Updated
- 2026-11-02
NVD
6.0
Clusters using Calico (version 3.14.0 and below), Calico Enterprise (version 2.8.2 and below), may be vulnerable to information disclosure if IPv6 is enabled but unused. A compromised pod with sufficient privilege is able to reconfigure the node’s IPv6 interface due to the node accepting route advertisement by default, allowing the attacker to redirect full or partial network traffic from the node to the compromised pod.
- Record
CVE-2020-13597- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L - CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N - CVSS 2.0
- 2.1 Low
AV:N/AC:H/Au:S/C:P/I:N/A:N - Weakness
- CWE-201, CWE-200
- Updated
- 2026-11-02
OSV
3.5
Clusters using Calico (version 3.14.0 and below), Calico Enterprise (version 2.8.2 and below), may be vulnerable to information disclosure if IPv6 is enabled but unused. A compromised pod with sufficient privilege is able to reconfigure the node’s IPv6 interface due to the node accepting route advertisement by default, allowing the attacker to redirect full or partial network traffic from the node to the compromised pod.
- Record
CVE-2020-13597- CVSS 3.1
- 3.5 Low
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N - Updated
- 2026-11-02
OSVGHSA-pf59-j7c2-rh6x
6.0
Exposure of Sensitive Information to an Unauthorized Actor and Insertion of Sensitive Information Into Sent Data in Calico
Clusters using Calico (version 3.14.0 and below), Calico Enterprise (version 2.8.2 and below), may be vulnerable to information disclosure if IPv6 is enabled but unused. A compromised pod with sufficient privilege is able to reconfigure the node’s IPv6 interface due to the node accepting route advertisement by default, allowing the attacker to redirect full or partial network traffic from the node to the compromised pod.
- Record
GHSA-pf59-j7c2-rh6x- CVSS 3.1
- 6.0 Medium
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L - Weakness
- CWE-200, CWE-201
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/projectcalico/calicoGo |
3.14.0 up to 3.14.1 | 3.14.1 |
github.com/projectcalico/calicoGo |
3.13.0 up to 3.13.4 | 3.13.4 |
github.com/projectcalico/calicoGo |
3.12.0 up to 3.12.2 | 3.12.2 |
github.com/projectcalico/calicoGo |
3.11.0 up to 3.11.3 | 3.11.3 |
github.com/projectcalico/calicoGo |
3.10.0 up to 3.10.4 | 3.10.4 |
github.com/projectcalico/calicoGo |
3.9.0 up to 3.9.6 | 3.9.6 |
github.com/projectcalico/calicoGo |
before 3.8.9 | 3.8.9 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-13597 is a medium vulnerability (CVSS 6.0) in Projectcalico Calico, published June 3, 2020. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.90%, the 59th percentile. Fixed in github.com/projectcalico/calico 3.14.1.
References
projectcalico.org/security-bulletins
groups.google.com/forum
github.com/kubernetes/kubernetes/issues/91507
nvd.nist.gov/vuln/detail/CVE-2020-13597
github.com/containernetworking/plugins/commit/ad10b6fa91aacd720f1f9ab94341a97a82a24965
github.com/containernetworking/plugins/pull/484
github.com/advisories/GHSA-pf59-j7c2-rh6x
github.com/projectcalico/calico