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  4. CVE 2026 116844 fclairamb ftpserverlib through 0324 cleartext
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Back to active CVEs
Medium · CVSS 6.3CVE-2026-116844

Fclairamb ftpserverlib through 0.32.4 Cleartext FTPES Data Transfer via PROT PCVE-2026-116844

Answer in brief

CVE-2026-116844 records a Medium severity (CVSS 6.3) vulnerability in Fclairamb ftpserverlib through 0.32.4 Cleartext FTPES Data Transfer via PROT P. The current sources do not mark it as known exploited. The current feed maps fclairamb/ftpserverlib (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Oct 27, 2026Updated Oct 27, 2026Source checked Oct 27, 2026First seen by HOL Oct 27, 2026Material review Oct 27, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 6.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 6.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps fclairamb/ftpserverlib (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
fclairamb/ftpserverlibgeneric>=0 <=0.32.4Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for fclairamb/ftpserverlib.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Oct 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 27, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 27, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
CWE-319
Source
CVE List V5
Source checked
Oct 27, 2026
References
4 linked sources
Open source record