CVE-2026-44729: Twenty is an open source CRM
CVE-2026-44729 is a high-severity flaw (CVSS 8.7) affecting twenty. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
Twenty is an open source CRM. In 1.18.0 and earlier, the file serving endpoints in Twenty CRM at /files/* and /file/:fileFolder/:id serve uploaded files using fileStream.pipe(res) without setting any Content-Type, Content-Disposition, or X-Content-Type-Options response headers. This allows an authenticated attacker to upload an HTML file containing JavaScript, which will be rendered by the victim's browser in the context of the Twenty CRM domain
Why this priority
- High severity
- Public exploit reference
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.7 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | Required |
| EPSS exploit chance | 0.3% (top 83%) |
| CISA exploited list | No |
| Weakness | CWE-79 |
| Published | 2026-05-26 |
| Last modified | 2026-07-24 |
Last updated 2026-07-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-44729?
twenty: upgrade to newer than 1.18.0. Exact commands for each OS are on this page.
Is CVE-2026-44729 being exploited?
CVE-2026-44729 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-44729 affect?
CVE-2026-44729 affects twenty. Severity is high (CVSS 8.7). Twenty is an open source CRM. In 1.18.0 and earlier, the file serving endpoints in Twenty CRM at /files/* and /file/:fileFolder/:id serve uploaded files using fileStream.pipe(res) without setting any Content-Type, Content-Disposition, or X-
How urgent is CVE-2026-44729?
Priority 40/100. High severity; Public exploit reference
Related CVEs
- CVE-2026-46624 CRITICAL 9.9 UPGRADE Twenty is an open source CRM