CVE-2022-3607Network attack vector

Server file disclosure via language-pack symlinks

Published Oct 19, 2022 · Updated May 9, 2025

Special element injection in OctoPrint before 1.8.3 allows remote authenticated users to disclose server files through a language pack. The language-pack upload path extracts a TAR archive containing a directory-traversing symbolic link without rejecting non-file entries, and backup creation follows that link into the archive. Administrative access is required; the resulting backup can include any file readable by the OctoPrint process.

CVSS severity6.1
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Special element injection in OctoPrint before 1.8.3 allows remote authenticated users to disclose server files through a language pack. The language-pack upload path extracts a TAR archive containing a directory-traversing symbolic link without rejecting non-file entries, and backup creation follows that link into the archive. Administrative access is required; the resulting backup can include any file readable by the OctoPrint process.

The record

CVE
CVE-2022-3607
Published
Oct 19, 2022
Updated
May 9, 2025
Vendor
OctoPrint
Product
OctoPrint
Classifications
CWE-75, CWE-74, T1005
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 19, 2022CVE publishedPublication date reported by the CVE source.
  2. May 9, 2025Record 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=unspecified <1.8.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

OctoPrint · OctoPrintversion=unspecified <1.8.3

Published CVSS scores

6.1GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:N/SA:N

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-75Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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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