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Malicious URL drafting attack against iodines static file server may allow path traversal

High severity GitHub Reviewed Published Oct 5, 2019 in boazsegev/iodine • Updated Nov 15, 2025

Package

bundler iodine (RubyGems)

Affected versions

< 0.7.34

Patched versions

0.7.34

Description

Impact

A path traversal vulnerability was detected in iodine's static file service. This vulnerability effects any application running iodine's static file server on an effected iodine version.

Malicious URL drafting may cause the static file server to attempt a response containing data from files that shouldn't be normally accessible from the public folder.

Patches

The vulnerability was patched in version 0.7.34. Please upgrade to the latest version.

Workarounds

A possible workaround would be to disable the static file service and it's X-Sendfile support, sending static files using nginx or a source code solution (sending the data dynamically).

However, it would be better to upgrade iodine to the latest version, as it also contains non-security related fixes.

For more information

If you have any questions or comments about this advisory:

References

@boazsegev boazsegev published to boazsegev/iodine Oct 5, 2019
Published to the GitHub Advisory Database Oct 7, 2019
Reviewed Apr 24, 2020
Last updated Nov 15, 2025

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS score

Exploit Prediction Scoring System (EPSS)

This score estimates the probability of this vulnerability being exploited within the next 30 days. Data provided by FIRST.
(59th percentile)

Weaknesses

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Learn more on MITRE.

CVE ID

CVE-2024-22050

GHSA ID

GHSA-85rf-xh54-whp3

Source code

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