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CVE-2026-119568critical9.1

vsftpd through 3.0.5 require_ssl_reuse Bypass via FTPS Data Channel Hijacking

Impact

vsftpd through 3.0.5 has an authentication bypass vulnerability via FTPS data channel hijacking, allowing unauthenticated attackers with the same source IP as the victim to steal downloads or inject upload data. The attacker must share the victim's source IP and obtain a TLS session ticket. This is due to improper verification of the communication channel source.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

vsftpd · VulnCheck

vsftpd

1 range
VulnCheck version evidence

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affected

0 → through 3.0.5

semver versions

unaffected

unknown

Other versions: unaffected

Original source description

vsftpd through 3.0.5 contains an authentication bypass vulnerability in ssl_data_accept() that allows unauthenticated attackers to hijack FTPS data connections by resuming their own TLS session ticket. Attackers sharing the victim's source IP can obtain a ticket via AUTH TLS, then connect to the victim's PASV port to steal downloads or inject upload data.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

Describes the evidence in this view, not whether the product is safe.

Original records

CVE-2026-119568

View the latest unmodified CVE JSON from the official source. It may be newer than this imported page.

cve.new JSON →

Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-940 ↗

Improper Verification of Source of a Communication Channel

VulnCheck

Related →

Environment requirements

These conditions apply together as specified by the publisher. A matching product name alone does not establish exposure.

VulnCheck · platform conditions

Any condition may hold

Vulnerable product

cpe:2.3:a:vsftpd_project:vsftpd:*:*:*:*:*:*:*:*

Through (inclusive): 3.0.5

Original applicability statements
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:vsftpd_project:vsftpd:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "3.0.5"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 2
VulnCheck

Assigning organization

2026-10-30
CISA-ADP

Additional data publisher

2026-10-30

What changed

Follow changes
  1. CVE · CVE-2026-119568

    Observed 2026-10-30T17:20:25.015Z · upstream updated 2026-10-30T15:54:01.560Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-30T15:34:52.633586Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "total"
      }
    ]
  }
]

Large field values are marked as truncated previews. Original source snapshots remain retained.

Showing up to 50 most recent observed changes.

References

3 sources
abraxaslabs.tech/research/vsftpd-ssl-data-any-ticket
third-party-advisoryVulnCheck
security.appspot.com/vsftpd.html
productVulnCheck
www.vulncheck.com/advisories/vsftpd-through-3.0.5-require-ssl-reuse-bypass-via-ftps-data-channel-hijacking
third-party-advisoryVulnCheck