CVE-2026-119364

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CVE-2026-119364

Summary: ProFTPD through 1.3.9e and 1.3.10rc4 mod_copy Symlink Following Write Bypass

Details: ProFTPD through 1.3.9e and 1.3.10rc1 through 1.3.10rc4 contains a link-following vulnerability in mod_copy that allows authenticated FTP users to bypass Limit WRITE restrictions via symlinks. Attackers can place a symlink in a writable directory and use SITE COPY or SITE CPTO to overwrite files in write-denied locations.

References: https://abraxaslabs.tech/research/proftpd-site-copy-dest-follow, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/119xxx/CVE-2026-119364.json, https://github.com/proftpd/proftpd/releases/tag/v1.3.10rc5, https://nvd.nist.gov/vuln/detail/CVE-2026-119364, https://www.vulncheck.com/advisories/proftpd-through-1.3-9e-and-1.3-10rc4-mod-copy-symlink-following-write-bypass, https://github.com/proftpd/proftpd/issues/2374, https://github.com/proftpd/proftpd/commit/c41691f8981f98081fcb8a535c3c21b06a3f04af, https://github.com/proftpd/proftpd, https://github.com/proftpd/proftpd/blob/v1.3.9e/contrib/mod_copy.c#L620