CVE-2026-56130 Apache Software Foundation CVE debrief

Who should care

Defenders responsible for Apache Shiro deployments, particularly those using RememberMe functionality, should assess exposure and prioritize upgrading to version 3.0.0 or later. They should also verify exposure in their deployments and monitor for suspicious cookie activity. Security teams and vulnerability management teams should review the issue and plan for remediation. Operators of affected systems should take priority in verifying exposure and remedi

Why it matters

CVE-2026-56130 allows potential indefinite reuse of valid cookies in Apache Shiro deployments using RememberMe functionality. Defenders should verify exposure, prioritize upgrading to version 3.0.0 or later, and monitor for suspicious activity.

• Potential indefinite reuse of valid cookies by attackers
• Need to verify exposure in Apache Shiro deployments
• Priority to upgrade to version 3.0.0 or later
• Monitoring for suspicious cookie activity required

Technical summary

Apache Shiro versions 1.2.4 through 2.x, and 3.0.0-alpha-1 have a vulnerability where the 'Remember me' cookie age is not verified on the server. This could potentially allow an attacker to intercept a valid cookie and reuse it indefinitely, even after the configured expiration time has passed. The issue only affects configurations where RememberMe functionality is enabled. Defenders should prioritize verifying exposure and upgrading to version 3.0.0 or later. The vulnerability involves unverified 'Remember me' cookie age on the server, which could allow attackers to intercept and reuse valid cookies indefinitely.

Defensive priority

Defenders should prioritize verifying exposure and upgrading to version 3.0.0 or later

Recommended defensive actions

• Verify if Apache Shiro versions 1.2.4 through 2.x, and 3.0.0-alpha-1 are in use and if RememberMe functionality is enabled
• Upgrade to version 3.0.0 or later, which fixes the issue
• Monitor for suspicious cookie activity
• Review compensating controls for exposed systems while remediation is scheduled and verified
• Check relevant monitoring, detection, and logs for exposed assets that need extra review
• Track exceptions, retest remediated assets, and close the item only after evidence is documented
• Confirm whether affected product deployments exist in managed environments and assign an owner for follow-up

Evidence notes

Evidence from official CVE Program record and NIST NVD detail page indicates 'Remember me' cookie age is not verified on the server, potentially allowing indefinite reuse of valid cookies. Defenders should verify exposure in Apache Shiro deployments, particularly those using RememberMe functionality, and prioritize upgrading to version 3.0.0 or later. The CVE record and NVD detail provide source-grounded information on the vulnerability.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.