PT-2026-43301 · Git+2 · Twenty

Thesanjok · Published 2026-05-26 · Updated 2026-05-27 · CVE-2026-44729

Positive Technologies (AI Summary)

CVSS v3.1

8.7

High

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Name of the Vulnerable Software and Affected Versions Twenty versions prior to 1.18.1

Description An issue exists in the file serving endpoints '/files/*' and '/file/:fileFolder/:id' where uploaded files are served using fileStream.pipe(res) without specifying Content-Type, Content-Disposition, or X-Content-Type-Options response headers. This allows an authenticated attacker to upload an HTML file containing JavaScript that the victim's browser will render within the context of the domain, potentially leading to session hijacking, account takeover, and data theft.

Recommendations Update to a version later than 1.18.0.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-44729

GHSA-F5H2-3QW5-3QP7

Affected Products

Twenty

References · 8

• 🔥 https://github.com/twentyhq/twenty/security/advisories/GHSA-f5h2-3qw5-3qp7 · Exploit
• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44729.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-44729 · Security Note
• https://osv.dev/vulnerability/CVE-2026-44729 · Vendor Advisory
• https://twitter.com/infoflowcloud/status/2059337813460402646 · Twitter Post
• https://t.me/cveNotify/164854 · Telegram Post
• https://twitter.com/dailycve/status/2059689610670718979 · Twitter Post
• https://twitter.com/CVEnew/status/2059337204413960245 · Twitter Post