CVE-2026-109391
Square Squash
- Square Squash
- Critical
- CVSS 9.2
- EPSS 0.48%
- No fixed version listed here
What to do
No fixed version listed here
Affected products
| Product | Affected | Fixed in |
|---|---|---|
| Square Squash | Only in the CVE record | Only in the CVE record |
The CVE record lists 1 range this page cannot state exactly.
Advisories and fixes
- Public exploit hackmd.io
Scores and signals
- Exploitation
- No known exploitation
- Severity
- Critical, CVSS 9.2 (v4.0, scored by VulnCheck)
- EPSS
- 0.48% chance of exploitation in the next 30 days (EPSS from FIRST, as of Oct 25, 2026)
- CISA's SSVC decision points
- Exploitation: none. Automatable: no. Technical impact: total. As of Oct 13, 2026.
- Weakness
- CWE-502: Deserialization of Untrusted Data
- Vendor
- Square, Squash
Timeline
- First listed as critical by cve.now. Affected and fixed versions come from the CVE record, once one is published.