Vulnerability Intelligence Report
Improper access to parent directory of root in os
CVE-2025-22873
It was possible to improperly access the parent directory of an os.Root by opening a filename ending in "../". For example, Root.Open("../") would open the parent directory of the Root. This escape only permits opening the parent directory itself, not ancestors of the parent or files contained within the parent.
No Active Exploit Signals
CVSS Base Score
3.8
LOW
Exploitability:2.1
Impact Score:1.5
EPSS Probability:0.24%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
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Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-23 ↗CWE-23: Relative Path Traversal
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Go standard library | os | 0 < 1.23.9 (affected), 1.24.0-0 < 1.24.3 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.238%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Go Project · Vendor · USA |
| Reserved | 2025-01-08T19:11:42 |
| Published | 2026-02-04T23:05:24 |
| Last Updated | 2026-02-05T15:03:55 |
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