CVE-2026-56138

Authenticated Path Traversal in AIL framework /objects/item/diff Allows Reading Gzip-Compressed Files

Published Jun 19, 2026 CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Description
AIL framework contains a path traversal vulnerability in the /objects/item/diff endpoint. The endpoint accepts item identifiers through the s1 and s2 query parameters and, prior to the fix, attempted to retrieve and compare item contents without first verifying that both referenced items existed as valid AIL objects.

An authenticated AIL user could craft malicious item identifiers containing path traversal sequences to cause the application to read gzip-compressed files accessible to the AIL process. This could result in unauthorized disclosure of local file contents, limited to files readable by the application and compatible with the expected gzip-compressed item format.

The issue was fixed by validating that both requested items exist before their contents are accessed.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Ail-project
Ail-project ail-framework
Vendors & Products Ail-project
Ail-project ail-framework
Type Values Removed Values Added
Description AIL framework contains a path traversal vulnerability in the /objects/item/diff endpoint. The endpoint accepts item identifiers through the s1 and s2 query parameters and, prior to the fix, attempted to retrieve and compare item contents without first verifying that both referenced items existed as valid AIL objects. An authenticated AIL user could craft malicious item identifiers containing path traversal sequences to cause the application to read gzip-compressed files accessible to the AIL process. This could result in unauthorized disclosure of local file contents, limited to files readable by the application and compatible with the expected gzip-compressed item format. The issue was fixed by validating that both requested items exist before their contents are accessed.
Title Authenticated Path Traversal in AIL framework /objects/item/diff Allows Reading Gzip-Compressed Files
Weaknesses CWE-22
References
Metrics cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
CIRCL
Published
Updated
Jun 22, 2026, 3:01 PM
Reserved
Jun 19, 2026, 8:03 AM
Status
Deferred
Published
Jun 19, 2026, 10:16 AM
Modified
Oct 26, 2026, 11:10 AM