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CVE-2026-119364medium6.0

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

Impact

ProFTPD through 1.3.9e and 1.3.10rc4 has a link-following vulnerability in mod_copy, allowing authenticated FTP users to bypass write restrictions via symlinks. Attackers can overwrite files in write-denied locations. Required access is authenticated FTP user.

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.

ProFTPD Project · VulnCheck

ProFTPD

2 ranges
VulnCheck version evidence

Package identity

pkg:github/proftpd/proftpd

Identity supplied by VulnCheck. Version matching requires compatible range evidence.

Compare with this publisher’s ranges. This does not inspect your installation.

affected

0 → through 1.3.9e

custom versions

1.3.10rc1 → before 1.3.10rc5

custom versions

unaffected

unknown

Other versions: unaffected

Original source description

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.

Inside the record

Evidence available

Package identity
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-2026-119364

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-59 ↗

Improper Link Resolution Before File Access ('Link Following')

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:proftpd:proftpd:*:*:*:*:*:*:*:*

Through (inclusive): 1.3.9e

Vulnerable product

cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*

From (inclusive): 1.3.10rc1

Before: 1.3.10rc5

Original applicability statements
[
  {
    "nodes": [
      {
        "operator": "OR",
        "negate": false,
        "cpeMatch": [
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*",
            "versionEndIncluding": "1.3.9e"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "1.3.10rc1",
            "versionEndExcluding": "1.3.10rc5"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 2
VulnCheck

Assigning organization

2026-10-30
CISA-ADP

Additional data publisher

2026-10-30

What changed

Follow changes
  1. CVE · CVE-2026-119364

    Observed 2026-10-30T17:19:37.517Z · upstream updated 2026-10-30T15:56:45.622Z

    Prioritization updated

    before

    []

    after

    [
  {
    "source": "CISA-ADP",
    "type": "SSVC",
    "role": "CISA Coordinator",
    "timestamp": "2026-10-30T15:20:52.024825Z",
    "decisions": [
      {
        "name": "Exploitation",
        "value": "none"
      },
      {
        "name": "Automatable",
        "value": "no"
      },
      {
        "name": "Technical Impact",
        "value": "partial"
      }
    ]
  }
]

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

Showing up to 50 most recent observed changes.

References

7 sources
github.com/proftpd/proftpd/commit/c41691f8981f98081fcb8a535c3c21b06a3f04af
patchVulnCheck
github.com/proftpd/proftpd/issues/2374
issue-trackingVulnCheck
github.com/proftpd/proftpd/blob/v1.3.9e/contrib/mod_copy.c
technical-descriptionVulnCheck
github.com/proftpd/proftpd/releases/tag/v1.3.10rc5
release-notesVulnCheck
abraxaslabs.tech/research/proftpd-site-copy-dest-follow
third-party-advisoryVulnCheck
github.com/proftpd/proftpd
productVulnCheck
View 1 more references
www.vulncheck.com/advisories/proftpd-through-1.3-9e-and-1.3-10rc4-mod-copy-symlink-following-write-bypass
third-party-advisoryVulnCheck