Reference page — cumulative record through Tuesday, October 6, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Confluence Data Center
Product reference — Confluence Data Center by Atlassian · sector: Enterprise Applications. Cumulative disclosure record for this product across the archive.
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Product totals
| All-time | YTD | |
|---|---|---|
| CVEs | 12 | 6 |
| KEV entries | 6 | 0 |
| KEV/100 | Med CVSS | Med EPSS | C | H | M | L |
|---|---|---|---|---|---|---|
| 50.0 | 9.3 | .9923 | 7 | 4 | 1 | 0 |
KEV/100 = KEV entries ÷ CVEs × 100. Med CVSS / Med EPSS are medians over this product's disclosures. C/H/M/L = disclosures by CVSS severity band.
Monthly disclosures
Trend (by first-seen month, full archive): █▁▁▁▁▁▁▁▁▁▅▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁█▁▁▅▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁█▅█▅
| Month | New CVEs |
|---|---|
| 2025-11 | 0 |
| 2025-12 | 0 |
| 2026-01 | 0 |
| 2026-02 | 0 |
| 2026-03 | 0 |
| 2026-04 | 0 |
| 2026-05 | 0 |
| 2026-06 | 0 |
| 2026-07 | 2 |
| 2026-08 | 1 |
| 2026-09 | 2 |
| 2026-10 | 1 |
Notable CVEs
Ranked by the published formula: KEV → EPSS → CVSS → CVE ID.
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2023-22518 | 10.0 | 100.0 | CRITICAL | YES | 2023-10-31 |
| CVE-2021-26084 | 9.8 | 100.0 | CRITICAL | YES | 2021-08-30 |
| CVE-2022-26134 | 9.8 | 100.0 | CRITICAL | YES | 2022-06-03 |
| CVE-2023-22527 | 10.0 | 100.0 | CRITICAL | YES | 2024-01-16 |
| CVE-2021-26085 | 5.3 | 100.0 | MEDIUM | YES | 2021-08-03 |
| CVE-2023-22515 | 10.0 | 99.9 | CRITICAL | YES | 2023-10-04 |
| CVE-2026-21580 | 9.3 | 41.3 | CRITICAL | — | 2026-08-18 |
| CVE-2026-21579 | 8.2 | 36.0 | HIGH | — | 2026-07-21 |
| CVE-2026-21577 | 7.1 | 34.7 | HIGH | — | 2026-07-21 |
| CVE-2026-21586 | 7.1 | 23.3 | HIGH | — | 2026-09-15 |
| CVE-2026-21588 | 7.1 | 19.5 | HIGH | — | 2026-09-15 |
| CVE-2026-21589 | 9.3 | — | CRITICAL | — | 2026-10-05 |
Recent CVEs
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2026-21589 | 9.3 | — | CRITICAL | — | 2026-10-05 |
| CVE-2026-21586 | 7.1 | 23.3 | HIGH | — | 2026-09-15 |
| CVE-2026-21588 | 7.1 | 19.5 | HIGH | — | 2026-09-15 |
| CVE-2026-21580 | 9.3 | 41.3 | CRITICAL | — | 2026-08-18 |
| CVE-2026-21579 | 8.2 | 36.0 | HIGH | — | 2026-07-21 |
| CVE-2026-21577 | 7.1 | 34.7 | HIGH | — | 2026-07-21 |
| CVE-2023-22527 | 10.0 | 100.0 | CRITICAL | YES | 2024-01-16 |
| CVE-2023-22518 | 10.0 | 100.0 | CRITICAL | YES | 2023-10-31 |
| CVE-2023-22515 | 10.0 | 99.9 | CRITICAL | YES | 2023-10-04 |
| CVE-2022-26134 | 9.8 | 100.0 | CRITICAL | YES | 2022-06-03 |
| CVE-2021-26084 | 9.8 | 100.0 | CRITICAL | YES | 2021-08-30 |
| CVE-2021-26085 | 5.3 | 100.0 | MEDIUM | YES | 2021-08-03 |
KEV entries
| CVE | KEV added | CVSS | EPSS %ile | Severity |
|---|---|---|---|---|
| CVE-2023-22527 | 2024-01-24 | 10.0 | 100.0 | CRITICAL |
| CVE-2023-22518 | 2023-11-07 | 10.0 | 100.0 | CRITICAL |
| CVE-2023-22515 | 2023-10-05 | 10.0 | 99.9 | CRITICAL |
| CVE-2022-26134 | 2022-06-02 | 9.8 | 100.0 | CRITICAL |
| CVE-2021-26085 | 2022-03-28 | 5.3 | 100.0 | MEDIUM |
| CVE-2021-26084 | 2021-11-03 | 9.8 | 100.0 | CRITICAL |
Related
Vendor: Atlassian — all products and the full vendor record.
Methodology
A product is a (vendor, product) pair as named in the affected-product data. Rate statistics are arithmetic over published figures. Counts key to first-seen day. Raw counts are not comparable across products; this is a reference page assembled from the public record, not a ranking by our judgment.
Sources. CVE Program (cvelistV5), NVD (NIST), CISA KEV, FIRST EPSS.
