Calico nodes IPv6 traffic redirection from route advertisment
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-201.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Tigera | Calico | 3.14.0; up to 3.13.3; up to 3.12.1; up to 3.11.2; up to 3.10.3; up to 3.9.5; up to 3.8.8; 3.7.x; 3.6.x; 3.5.x; 3.4.x; 3.3.x; 3.2.x; 3.1.x; 3.0.x; 2.6.x; 2.5.x; 2.4.x; 2.3.x; 2.2.x; 2.1.x; 2.0.x; 1.6.x; 1.5.x | — | No fix listed | CNA |
| Tigera | Calico Enterprise | up to 2.8.2; up to 2.7.4; up to 2.6.2; 2.5.x; 2.4.x; 2.3.x; 2.2.x; 2.1.x; 2.0.x | — | No fix listed | CNA |
| — | github.com/projectcalico/calico (Go) | 3.14.0 to before 3.14.1 | 3.14.1 | Patch available | GHSA-pf59-j7c2-rh6x |
| — | github.com/projectcalico/calico (Go) | 3.13.0 to before 3.13.4 | 3.13.4 | Patch available | GHSA-pf59-j7c2-rh6x |
| — | github.com/projectcalico/calico (Go) | 3.12.0 to before 3.12.2 | 3.12.2 | Patch available | GHSA-pf59-j7c2-rh6x |
| — | github.com/projectcalico/calico (Go) | 3.11.0 to before 3.11.3 | 3.11.3 | Patch available | GHSA-pf59-j7c2-rh6x |
| — | github.com/projectcalico/calico (Go) | 3.10.0 to before 3.10.4 | 3.10.4 | Patch available | GHSA-pf59-j7c2-rh6x |
| — | github.com/projectcalico/calico (Go) | 3.9.0 to before 3.9.6 | 3.9.6 | Patch available | GHSA-pf59-j7c2-rh6x |
| — | github.com/projectcalico/calico (Go) | before 3.8.9 | 3.8.9 | Patch available | GHSA-pf59-j7c2-rh6x |
- Calico VendorTigera Affected 3.14.0; up to 3.13.3; up to 3.12.1; up to 3.11.2; up to 3.10.3; up to 3.9.5; up to 3.8.8; 3.7.x; 3.6.x; 3.5.x; 3.4.x; 3.3.x; 3.2.x; 3.1.x; 3.0.x; 2.6.x; 2.5.x; 2.4.x; 2.3.x; 2.2.x; 2.1.x; 2.0.x; 1.6.x; 1.5.x Fixed in — No fix listed CNA
- Calico Enterprise VendorTigera Affected up to 2.8.2; up to 2.7.4; up to 2.6.2; 2.5.x; 2.4.x; 2.3.x; 2.2.x; 2.1.x; 2.0.x Fixed in — No fix listed CNA
- github.com/projectcalico/calico (Go) Vendor— Affected 3.14.0 to before 3.14.1 Fixed in 3.14.1 Patch available GHSA-pf59-j7c2-rh6x
- github.com/projectcalico/calico (Go) Vendor— Affected 3.13.0 to before 3.13.4 Fixed in 3.13.4 Patch available GHSA-pf59-j7c2-rh6x
- github.com/projectcalico/calico (Go) Vendor— Affected 3.12.0 to before 3.12.2 Fixed in 3.12.2 Patch available GHSA-pf59-j7c2-rh6x
- github.com/projectcalico/calico (Go) Vendor— Affected 3.11.0 to before 3.11.3 Fixed in 3.11.3 Patch available GHSA-pf59-j7c2-rh6x
- github.com/projectcalico/calico (Go) Vendor— Affected 3.10.0 to before 3.10.4 Fixed in 3.10.4 Patch available GHSA-pf59-j7c2-rh6x
- github.com/projectcalico/calico (Go) Vendor— Affected 3.9.0 to before 3.9.6 Fixed in 3.9.6 Patch available GHSA-pf59-j7c2-rh6x
- github.com/projectcalico/calico (Go) Vendor— Affected before 3.8.9 Fixed in 3.8.9 Patch available GHSA-pf59-j7c2-rh6x
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:projectcalico:calico:*:*:*:*:enterprise:*:*:* | up to 2.6.2 | Vulnerable | Project Calico |
| cpe:2.3:a:projectcalico:calico:*:*:*:*:*:*:*:* | up to 3.8.8 | Vulnerable | Project Calico |
| cpe:2.3:a:projectcalico:calico:*:*:*:*:enterprise:*:*:* | 2.7.0 – 2.7.4; 2.8.0 – 2.8.2 | Vulnerable | Project Calico |
| cpe:2.3:a:projectcalico:calico:*:*:*:*:*:*:*:* | 3.9.0 – 3.9.5; 3.10.0 – 3.10.3; 3.11.0 – 3.11.2; 3.12.0 – 3.12.1; 3.13.0 – 3.13.3 | Vulnerable | Project Calico |
| cpe:2.3:a:projectcalico:calico:3.14.0:*:*:*:*:*:*:* | 3.14.0 | Vulnerable | Project Calico |
- cpe:2.3:a:projectcalico:calico:*:*:*:*:enterprise:*:*:* Versions up to 2.6.2 Vulnerable ·Project Calico
- cpe:2.3:a:projectcalico:calico:*:*:*:*:*:*:*:* Versions up to 3.8.8 Vulnerable ·Project Calico
- cpe:2.3:a:projectcalico:calico:*:*:*:*:enterprise:*:*:* Versions 2.7.0 – 2.7.4; 2.8.0 – 2.8.2 Vulnerable ·Project Calico
- cpe:2.3:a:projectcalico:calico:*:*:*:*:*:*:*:* Versions 3.9.0 – 3.9.5; 3.10.0 – 3.10.3; 3.11.0 – 3.11.2; 3.12.0 – 3.12.1; 3.13.0 – 3.13.3 Vulnerable ·Project Calico
- cpe:2.3:a:projectcalico:calico:3.14.0:*:*:*:*:*:*:* Versions 3.14.0 Vulnerable ·Project Calico
Remediation
- Fix · GHSA-pf59-j7c2-rh6x github.com/projectcalico/calico (Go) Fixed in 3.14.1 Advisory →
- Fix · GHSA-pf59-j7c2-rh6x github.com/projectcalico/calico (Go) Fixed in 3.13.4 Advisory →
- Fix · GHSA-pf59-j7c2-rh6x github.com/projectcalico/calico (Go) Fixed in 3.12.2 Advisory →
- Fix · GHSA-pf59-j7c2-rh6x github.com/projectcalico/calico (Go) Fixed in 3.11.3 Advisory →
- Fix · GHSA-pf59-j7c2-rh6x github.com/projectcalico/calico (Go) Fixed in 3.10.4 Advisory →
- Fix · GHSA-pf59-j7c2-rh6x github.com/projectcalico/calico (Go) Fixed in 3.9.6 Advisory →
- Fix · GHSA-pf59-j7c2-rh6x github.com/projectcalico/calico (Go) Fixed in 3.8.9 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-13597
- 2026-10-03 Alias added: GHSA-pf59-j7c2-rh6x
References
Advisory 3
Other 6
- https://groups.google.com/forum/#%21topic/kubernetes-security-announce/BMb_6ICCfp8
- https://github.com/containernetworking/plugins/pull/484
- https://github.com/containernetworking/plugins/commit/ad10b6fa91aacd720f1f9ab94341a97a82a24965
- https://github.com/projectcalico/calico
- https://groups.google.com/forum/#!topic/kubernetes-security-announce/BMb_6ICCfp8
- https://www.projectcalico.org/security-bulletins
More Tigera vulnerabilities
- TI-2023-21972 Calico Typha hangs during unclean TLS handshake CVSS 3.1HIGH 7.5
- TI-2026-05735 L7 policy bypass via unnormalized HTTP path matching CVSS 4.0HIGH 7.9
- TI-2026-05888 Calicoctl leaks cluster credentials to stderr when verbose logging is enabled CVSS 4.0HIGH 7.2
- TI-2024-22113 Privilege escalation in Calico CNI install binary CVSS 3.1MEDIUM 6.7
- TI-2026-29810 Calico Tier Authorization Bypass via DeleteCollection CVSS 4.0MEDIUM 6.2
- TI-2026-29809 Unauthenticated Go pprof exposure in Calico debug server CVSS 4.0MEDIUM 6.0
Sources
- CVE-2020-13597 · CVE Program
- CVE-2020-13597 · NVD
- FIRST EPSS
- GHSA-pf59-j7c2-rh6x · GitHub Advisory Database · CC BY 4.0
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