Tigera Calico Os
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By the Year
In 2026 there have been 0 vulnerabilities in Tigera Calico Os. Calico Os did not have any published security vulnerabilities last year.
| Year | Vulnerabilities | Average Score |
|---|---|---|
| 2026 | 0 | 0.00 |
| 2025 | 0 | 0.00 |
| 2024 | 0 | 0.00 |
| 2023 | 1 | 7.50 |
| 2022 | 1 | 5.50 |
It may take a day or so for new Calico Os vulnerabilities to show up in the stats or in the list of recent security vulnerabilities. Additionally vulnerabilities may be tagged under a different product or component name.
Recent Tigera Calico Os Security Vulnerabilities
DDoS: Infinite TLS Handshake Block in Calico Typha v3.26.2
CVE-2023-41378
7.5 - High
- November 06, 2023
In certain conditions for Calico Typha (v3.26.2, v3.25.1 and below), and Calico Enterprise Typha (v3.17.1, v3.16.3, v3.15.3 and below), a client TLS handshake can block the Calico Typha server indefinitely, resulting in denial of service. The TLS Handshake() call is performed inside the main server handle for loop without any timeout allowing an unclean TLS handshake to block the main loop indefinitely while other connections will be idle waiting for that handshake to finish.
Improper Handling of Exceptional Conditions
Clusters using Calico (version 3.22.1 and below)
CVE-2022-28224
5.5 - Medium
- June 06, 2022
Clusters using Calico (version 3.22.1 and below), Calico Enterprise (version 3.12.0 and below), may be vulnerable to route hijacking with the floating IP feature. Due to insufficient validation, a privileged attacker may be able to set a floating IP annotation to a pod even if the feature is not enabled. This may allow the attacker to intercept and reroute traffic to their compromised pod.
Improper Input Validation
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