CVE-2026-57171Public exploit

Arbitrary file write via unchecked output paths

Published Aug 25, 2026 · Updated Aug 25, 2026

Path traversal in OSCAL Compass Compliance-trestle before 3.12.4 and 4.0.0 through 4.0.3 allows attackers to write files via output paths. The generate commands join the untrusted output argument to the workspace root but apply only a task-name collision check, allowing absolute paths and traversal segments to escape the workspace. Exploitation requires trusted automation to derive that argument from untrusted data; force-overwrite also recursively deletes the selected directory tree.

CVSS severity7.7
High
EPSS probability0.20%
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 OSCAL Compass Compliance-trestle before 3.12.4 and 4.0.0 through 4.0.3 allows attackers to write files via output paths. The generate commands join the untrusted output argument to the workspace root but apply only a task-name collision check, allowing absolute paths and traversal segments to escape the workspace. Exploitation requires trusted automation to derive that argument from untrusted data; force-overwrite also recursively deletes the selected directory tree.

The record

CVE
CVE-2026-57171
Published
Aug 25, 2026
Updated
Aug 25, 2026
Vendor
OSCAL Compass
Product
Compliance-trestle
Classifications
CWE-22, T1565.001, T1485
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 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=< 3.12.4
  2. Affected versionversion=>= 4.0.0, < 4.1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

OSCAL Compass · Compliance-trestleversion=< 3.12.4; version=>= 4.0.0, < 4.1.0

Published CVSS scores

7.7GitHub CNACVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
8.4OSCAL Compass GitHub Security AdvisoryCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

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No observations available

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

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1565.001Stored Data Manipulation
T1485Data Destruction

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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