Back to CVE records
Not yet scoredKnown exploited (CISA KEV)RejectedPublished Oct 5, 2026
CVE-2026-21589This CVE's publication may have been a false positive or a mistake.
Updated under an hour ago ()
Does this affect you?
It lists no affected products yet. Add what you run and Signals checks it as products are added.
CISA lists it as known exploited since Oct 15, 2026; federal agencies had to remediate by Oct 18, 2026. Treat that date as your deadline.
This CVE's publication may have been a false positive or a mistake. As a result, we have rejected this record.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Added to CISA KEV Oct 15, 2026; federal remediation due Oct 18, 2026Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
- EPSS (exploitation in the next 30 days)
- 12.71% (percentile 96)
- Assigned by
- atlassian
- NVD analysis
- Rejected
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
No affected products are listed yet.
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.