What’s Vulnerable › Vulnerabilities

CVE-2019-12422

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 9.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2019-11-18 · updated 2026-06-17

Description

Apache Shiro before 1.4.2, when using the default "remember me" configuration, cookies could be susceptible to a padding attack.

Affected products

• Apache Software Foundation Apache Shiro: before 1.4.2 — fixed in 1.4.2

How to fix

Upgrade to a fixed version: Apache Software Foundation Apache Shiro 1.4.2. Check the vendor advisory for mitigations.

References

• https://lists.apache.org/thread.html/c9db14cfebfb8e74205884ed2bf2e2b30790ce24b7dde9191c82572c%40%3Cdev.shiro.apache.org%3E
• https://lists.apache.org/thread.html/r2d2612c034ab21a3a19d2132d47d3e4aa70105008dd58af62b653040%40%3Ccommits.shiro.apache.org%3E
• https://lists.apache.org/thread.html/c9db14cfebfb8e74205884ed2bf2e2b30790ce24b7dde9191c82572c%40%3Cdev.shiro.apache.org%3E
• https://lists.apache.org/thread.html/r2d2612c034ab21a3a19d2132d47d3e4aa70105008dd58af62b653040%40%3Ccommits.shiro.apache.org%3E

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