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CVE-2026-119147medium5.3

ProFTPD before 1.3.9e and 1.3.10rc5 mod_sftp Copy-File Authorization Bypass

Impact

ProFTPD before 1.3.9e and 1.3.10rc5 has an authorization bypass in the mod_sftp copy-file extension handler, allowing authenticated SFTP users to copy files to write-denied directories. The weakness is due to skipping Limit WRITE checks for new destination files. Authenticated access is required.

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 → before 1.3.9e

custom versions

1.3.10rc1 → before 1.3.10rc5

custom versions

unaffected

unknown

Other versions: unaffected

Original source description

ProFTPD before 1.3.9e and 1.3.10rc5 contains an authorization bypass in the mod_sftp copy-file extension handler that skips Limit WRITE checks for new destination files. Authenticated SFTP users can copy any readable file to a new path in write-denied directories, creating files where uploads are forbidden.

Inside the record

Evidence available

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

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

Original records

CVE-2026-119147

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-863 ↗

Incorrect Authorization

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:*:*:*:*:*:*:*:*

Before: 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:*:*:*:*:*:*:*:*",
            "versionEndExcluding": "1.3.9e"
          },
          {
            "vulnerable": true,
            "criteria": "cpe:2.3:a:proftpd:proftpd:*:*:*:*:*:*:*:*",
            "versionStartIncluding": "1.3.10rc1",
            "versionEndExcluding": "1.3.10rc5"
          }
        ]
      }
    ]
  }
]
Contributing organizations · 1
VulnCheck

Assigning organization

2026-10-30

What changed

Follow changes
No substantive changes have been recorded here yet. History starts when cve.new observes a change after tracking is enabled; earlier edits are not reconstructed.

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

References

7 sources
github.com/proftpd/proftpd/commit/b7d3de4565ae448a510feecd17b41923e44bfe16
patchVulnCheck
github.com/proftpd/proftpd/blob/v1.3.9d/contrib/mod_sftp/fxp.c
technical-descriptionVulnCheck
github.com/proftpd/proftpd/releases/tag/v1.3.9e
release-notesVulnCheck
github.com/proftpd/proftpd/releases/tag/v1.3.10rc5
release-notesVulnCheck
abraxaslabs.tech/research/proftpd-sftp-copy-file-write
third-party-advisoryVulnCheck
github.com/proftpd/proftpd
productVulnCheck
View 1 more references
www.vulncheck.com/advisories/proftpd-before-1.3-9e-and-1.3-10rc5-mod-sftp-copy-file-authorization-bypass
third-party-advisoryVulnCheck