Reference page — cumulative record through Monday, October 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Mattermost
Product reference — Mattermost by Mattermost · sector: Other. Cumulative disclosure record for this product across the archive.
Product totals
| All-time | YTD | |
|---|---|---|
| CVEs | 97 | 97 |
| KEV entries | 0 | 0 |
| KEV/100 | Med CVSS | Med EPSS | C | H | M | L |
|---|---|---|---|---|---|---|
| 0.0 | 5.4 | .0028 | 2 | 10 | 77 | 8 |
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 |
|---|---|
| 2026-05 | 13 |
| 2026-06 | 18 |
| 2026-07 | 15 |
| 2026-08 | 14 |
| 2026-09 | 22 |
| 2026-10 | 15 |
Notable CVEs
Ranked by the published formula: KEV → EPSS → CVSS → CVE ID.
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2026-5740 | 7.5 | 46.2 | HIGH | — | 2026-05-22 |
| CVE-2026-6739 | 7.2 | 38.6 | HIGH | — | 2026-06-12 |
| CVE-2026-6957 | 4.9 | 38.6 | MEDIUM | — | 2026-05-27 |
| CVE-2026-9699 | 6.8 | 38.4 | MEDIUM | — | 2026-06-26 |
| CVE-2026-6961 | 7.6 | 37.8 | HIGH | — | 2026-06-12 |
| CVE-2026-5308 | 7.5 | 37.2 | HIGH | — | 2026-05-22 |
| CVE-2026-7521 | 5.5 | 36.7 | MEDIUM | — | 2026-07-28 |
| CVE-2026-7184 | 6.5 | 36.7 | MEDIUM | — | 2026-06-12 |
| CVE-2026-4646 | 4.3 | 35.9 | MEDIUM | — | 2026-05-22 |
| CVE-2026-5132 | 6.5 | 34.8 | MEDIUM | — | 2026-09-14 |
| CVE-2026-5755 | 6.5 | 34.9 | MEDIUM | — | 2026-05-22 |
| CVE-2026-6850 | 6.5 | 34.9 | MEDIUM | — | 2026-07-13 |
| CVE-2026-8075 | 6.5 | 34.9 | MEDIUM | — | 2026-07-17 |
| CVE-2026-9602 | 6.5 | 34.9 | MEDIUM | — | 2026-07-17 |
| CVE-2026-10080 | 6.5 | 34.8 | MEDIUM | — | 2026-08-17 |
Recent CVEs
| CVE | CVSS | EPSS %ile | Severity | KEV | First seen |
|---|---|---|---|---|---|
| CVE-2026-18551 | 6.5 | 11.9 | MEDIUM | — | 2026-10-16 |
| CVE-2026-18799 | 4.3 | 3.9 | MEDIUM | — | 2026-10-16 |
| CVE-2026-19867 | 4.3 | 10.8 | MEDIUM | — | 2026-10-16 |
| CVE-2026-19601 | 4.9 | 13.3 | MEDIUM | — | 2026-10-16 |
| CVE-2026-18795 | 6.4 | 3.8 | MEDIUM | — | 2026-10-16 |
| CVE-2026-19621 | 6.5 | 15.1 | MEDIUM | — | 2026-10-16 |
| CVE-2026-19603 | 4.3 | 6.7 | MEDIUM | — | 2026-10-16 |
| CVE-2026-18256 | 4.3 | 4.9 | MEDIUM | — | 2026-10-16 |
| CVE-2026-16251 | 6.5 | 19.1 | MEDIUM | — | 2026-10-16 |
| CVE-2026-19541 | 6.5 | 11.5 | MEDIUM | — | 2026-10-16 |
| CVE-2026-19600 | 4.5 | 13.6 | MEDIUM | — | 2026-10-16 |
| CVE-2026-19076 | 4.4 | 8.8 | MEDIUM | — | 2026-10-16 |
| CVE-2026-18560 | 4.3 | 6.7 | MEDIUM | — | 2026-10-16 |
| CVE-2026-16453 | 7.1 | 7.7 | HIGH | — | 2026-10-16 |
| CVE-2026-18223 | 5.0 | 4.8 | MEDIUM | — | 2026-10-16 |
KEV entries
No entries in the CISA KEV catalog.
Related
Vendor: Mattermost — 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.
