Vulnerability · Published Oct 30, 2026 · Assigned by VulnCheck
CVE-2026-119568vsftpd through 3.0.5 require_ssl_reuse Bypass via FTPS Data Channel Hijacking
High 7.4
In plain English
A high-severity security flaw in vsftpd from vsftpd. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 35% of all known vulnerabilities).
Severity (CVSS 3.1)7.4High
Exploit odds (30 days)0.4%top 65.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
vsftpd through 3.0.5 contains an authentication bypass vulnerability in ssl_data_accept() that allows unauthenticated attackers to hijack FTPS data connections by resuming their own TLS session ticket. Attackers sharing the victim's source IP can obtain a ticket via AUTH TLS, then connect to the victim's PASV port to steal downloads or inject upload data.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | vsftpd | no fix listed | DEBIAN-CVE-2026-119568 |
| Debian:13 | vsftpd | no fix listed | DEBIAN-CVE-2026-119568 |
| Debian:14 | vsftpd | no fix listed | DEBIAN-CVE-2026-119568 |
| Ubuntu:22.04:LTS | vsftpd | no fix listed | UBUNTU-CVE-2026-119568 |
| Ubuntu:24.04:LTS | vsftpd | no fix listed | UBUNTU-CVE-2026-119568 |
| Ubuntu:26.04:LTS | vsftpd | no fix listed | UBUNTU-CVE-2026-119568 |
| Ubuntu:26.10 | vsftpd | no fix listed | UBUNTU-CVE-2026-119568 |
Affected products (as reported)
Weakness: CWE-940 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
References
- https://abraxaslabs.tech/research/vsftpd-ssl-data-any-ticket third-party-advisory
- https://security.appspot.com/vsftpd.html product
- VulnCheck Advisory: vsftpd through 3.0.5 require_ssl_reuse Bypass via FTPS Data Channel Hijacking third-party-advisory