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CVE-2026-21589

CISA KEVNVD

Rejected reason: This CVE's publication may have been a false positive or a mistake. As a result, we have rejected this record.

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⚠️ Actively exploited — CISA KEV

This CVE was added to CISA's Known Exploited Vulnerabilities catalog on 2026-10-15. It is confirmed exploited in the wild and must be patched as a priority.

Remediation deadline (US federal agencies): 2026-10-18

EPSS · FIRST.org

12.7%probability of exploitation in the next 30 days

Higher than 96% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-16, recomputed daily by FIRST.org.

In-depth analysis on cveo.tech

We've published a detailed analysis of this CVE — exploitation, IOCs and mitigation.

Information

Published
5 oct. 2026
Updated
16 oct. 2026
Status
Rejected
Source
security@atlassian.com

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