Medium severity · published Oct 30, 2026
CVE-2026-119147
ProFTPD before 1.3.9e and 1.3.10rc5 mod_sftp Copy-File Authorization Bypass
New
4.3
CVSS
–
EPSS
No
On KEV
Description
ProFTPD before 1.3.9e and 1.3.10rc5 contains an authorization bypass in the mod_sftp copy-file extension handler that skips Limit WRITE checks for new destination files. Authenticated SFTP users can copy any readable file to a new path in write-denied directories, creating files where uploads are forbidden.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PR
ProFTPD · ProFTPD Project
before 1.3.9e; 1.3.10rc1 before 1.3.10rc5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-119147
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-119147
patch
https://github.com/proftpd/proftpd/commit/b7d3de4565ae448a510feecd17b41923e44bfe16
technical-description
https://github.com/proftpd/proftpd/blob/v1.3.9d/contrib/mod_sftp/fxp.c#L4748
release-notes
https://github.com/proftpd/proftpd/releases/tag/v1.3.9e
release-notes
https://github.com/proftpd/proftpd/releases/tag/v1.3.10rc5
third-party-advisory
https://abraxaslabs.tech/research/proftpd-sftp-copy-file-write
product
https://github.com/proftpd/proftpd
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–
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