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TI-2026-32217 Aliases CVE-2026-44240GHSA-rpmf-866q-6p89

Uncontrolled resource consumption in patrickjuchli basic-ftp

Priority HIGH 72CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 4 fixed, 3 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-400.

Summary

basic-ftp is an FTP client for Node.js. Prior to 5.3.1, basic-ftp is vulnerable to client-side denial of service when parsing FTP control-channel multiline responses. A malicious or compromised FTP server can send an unterminated multiline response during the initial FTP banner phase, before authentication. The client keeps appending attacker-controlled data into FtpContext._partialResponse and repeatedly reparses the accumulated buffer without enforcing a maximum control response size. As a result, an application using basic-ftp can remain stuck in connect() while memory and CPU usage grow under attacker-controlled input. This can lead to process-level denial of service, container OOM kills, worker restarts, queue backlog, or service degradation in applications that automatically connect to FTP endpoints. This vulnerability is fixed in 5.3.1.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00514 44th percentileScored 2026-11-07
Fix Partial basic-ftp (patrickjuchli): 5.3.1basic-ftp (npm): 5.3.1Red Hat: 4 advisoriesRed Hat: 4 fixed, 3 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
patrickjuchlibasic-ftpbefore 5.3.15.3.1Patch availableCNA
—basic-ftp (npm)before 5.3.15.3.1Patch availableGHSA-rpmf-866q-6p89
  • basic-ftp Vendorpatrickjuchli Affected before 5.3.1 Fixed in 5.3.1 Patch available CNA
  • basic-ftp (npm) Vendor— Affected before 5.3.1 Fixed in 5.3.1 Patch available GHSA-rpmf-866q-6p89

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:patrickjuchli:basic-ftp:*:*:*:*:*:*:*:*——patrickjuchli
  • cpe:2.3:a:patrickjuchli:basic-ftp:*:*:*:*:*:*:*:* Versions — — ·patrickjuchli

Remediation

  • Fix · CNA basic-ftp (patrickjuchli) Fixed in 5.3.1
  • Fix · GHSA-rpmf-866q-6p89 basic-ftp (npm) Fixed in 5.3.1 Advisory →

Red Hat 4 advisories

  • RHSA-2026:73987 Released 2026-09-30 · Red Hat rating Critical
    RHOAI 3.3.7 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.3 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9, registry.redhat.io/rhoai/odh-data-science-pipelines-argo-argoexec-rhel9 +47
  • RHSA-2026:65126 Released 2026-09-08 · Red Hat rating Important
    RHOAI 2.25.11 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 2.25 registry.redhat.io/rhoai/odh-built-in-detector-rhel9, registry.redhat.io/rhoai/odh-caikit-tgis-serving-rhel9, registry.redhat.io/rhoai/odh-dashboard-rhel9 +47
  • RHSA-2026:60520 Released 2026-08-27 · Red Hat rating Critical
    RHOAI 3.4.4 - Red Hat OpenShift AI
    • Red Hat OpenShift AI 3.4 registry.redhat.io/rhoai/odh-automl-rhel9, registry.redhat.io/rhoai/odh-autorag-rhel9, registry.redhat.io/rhoai/odh-built-in-detector-rhel9 +47
Show 1 more Red Hat advisories
  • RHSA-2026:48693 Released 2026-08-04 · Red Hat rating Critical
    OpenShift Container Platform 4.22.8 bug fix and security update
    • Red Hat OpenShift Container Platform 4.22 registry.redhat.io/openshift4/ose-agent-installer-ui-rhel9, registry.redhat.io/openshift4/ose-hypershift-rhel9, registry.redhat.io/openshift4/ose-installer-artifacts-rhel9 +2

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Developer Hub 1AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux AI (RHEL AI) 3AffectedNo fix yet
Red Hat OpenShift Container Platform 5AffectedNo fix yet
Red Hat OpenShift AI 2.25Fixed RHSA-2026:65126
Red Hat OpenShift AI 3.3Fixed RHSA-2026:73987
Red Hat OpenShift AI 3.4Fixed RHSA-2026:60520
Red Hat OpenShift Container Platform 4.22Fixed RHSA-2026:48693
Not affected: 9 products
  • Red Hat Enterprise Linux 10
  • Red Hat Enterprise Linux 9
  • Red Hat Hardened Images
  • Red Hat OpenShift AI 2.25
  • Red Hat OpenShift AI 3.3
  • Red Hat OpenShift AI 3.4
  • Red Hat OpenShift Container Platform 4
  • Red Hat OpenShift Container Platform 4.22
  • Self-service automation portal 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44240
  2. 2026-10-03 Alias added: GHSA-rpmf-866q-6p89
  3. 2026-10-07 Fix available: RHSA-2026:73987 · Red Hat
  4. 2026-10-27 Affected versions changed · Red Hat
  5. 2026-11-02 Affected versions changed · Red Hat

References

Advisory 1

Other 2

  • TI-2026-22075 Basic FTP has Path Traversal Vulnerability in its downloadToDir() method CVSS 3.1CRITICAL 9.8
  • TI-2026-28837 FTP Command Injection via CRLF in basic-ftp CVSS 3.1HIGH 8.6
  • TI-2026-65547 basic-ftp: Quadratic-time CPU denial of service in Client.list() Unix directory-listing parser (RE_LINE backtracking) CVSS 4.0HIGH 8.2
  • TI-2026-29925 basic-ftp vulnerable to denial of service via unbounded memory consumption in Client.list() CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences