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VULNERABILITIES

CVE-2026-116844 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

Description

Fclairamb ftpserverlib through 0.32.4 contains a cleartext transmission vulnerability because TransferOpen checks only the transferTLS flag set by PROT, not whether the prepared data connection uses TLS. When a client sends PROT P after PASV or PORT, file contents and directory listings cross the network unencrypted, even with mandatory encryption, letting on-path attackers read or modify them.

Metrics

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://github.com/fclairamb/ftpserverlib/blob/v0.32.4/client_handler.go#L720 [email protected]Source CodeVendor
https://github.com/fclairamb/ftpserverlib/blob/v0.32.4/handle_misc.go#L29-L31 [email protected]Source CodeVendor
https://github.com/fclairamb/ftpserverlib/pull/685 [email protected]Issue TrackingVendor
https://www.vulncheck.com/advisories/fclairamb-ftpserverlib-through-0.32.4-cleartext-ftpes-data-transfer-via-prot-p [email protected]Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-319Cleartext Transmission of Sensitive Information[email protected]

Affected Products

ProductVersions
Fclairamb ftpserverlib
<= 0.32.4 (semver)

CPE

  • No CPEs found in CPE dictionary for this product.

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-116844
NVD Published Date:
Oct 27, 2026
NVD Last Modified:
Oct 29, 2026
Source:
[email protected]