CVE-2026-22249Public exploitNetwork attack vector

Authenticated arbitrary file write via ZIP traversal

Published Jan 15, 2026 · Updated Jan 15, 2026

Path traversal in Docmost 0.21.0 through 0.23.2 allows remote authenticated users to write files via a crafted ZIP import. The ZIP extractor strips leading slashes but joins each unvalidated entry name to its target, so ../ segments resolve and write outside the import directory. Any low-privileged user with ZIP import access can create or overwrite files as the Docmost process, causing a service crash or enabling code execution.

CVSS severity7.1
High
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Docmost 0.21.0 through 0.23.2 allows remote authenticated users to write files via a crafted ZIP import. The ZIP extractor strips leading slashes but joins each unvalidated entry name to its target, so ../ segments resolve and write outside the import directory. Any low-privileged user with ZIP import access can create or overwrite files as the Docmost process, causing a service crash or enabling code execution.

The record

CVE
CVE-2026-22249
Published
Jan 15, 2026
Updated
Jan 15, 2026
Vendor
Docmost
Product
Docmost
Classifications
CWE-22, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 15, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.24.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Docmost · Docmostversion=< 0.24.0

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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