UBI Reader vulnerable to Path Traversal

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

6.9 · CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N · score source

EPSS

• CVE-2022-4572: 0.59% estimated exploitation activity in the next 30 days; percentile 48.17 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

A vulnerability, which was classified as problematic, has been found in UBI Reader up to 0.8.0. Affected by this issue is the function ubireaderextractfiles of the file ubireader/ubifs/output.py of the component UBIFS File Handler. The manipulation leads to path traversal. The attack may be launched remotely. Upgrading to version 0.8.5 can address this issue. The name of the patch is d5d68e6b1b9f7070c29df5f67fc060f579ae9139. It is recommended to upgrade the affected component. VDB-216146 is the identifier assigned to this vulnerability.

Published by the source

17 Dec 2022, 03:30 UTC

Last modified by the source

18 Nov 2024, 23:24 UTC

Source last checked

26 Oct 2026, 13:27 UTC

1. Revision 3 · amended · 26 Oct 2026

   Amended from ghsa record GHSA-hc37-84v3-8gmq

2. Revision 2 · amended · 25 Oct 2026

   Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

3. Revision 1 · created · 24 Oct 2026

   Published from osv record GHSA-hc37-84v3-8gmq

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# Patch Next advisory brief: CVE-2022-4572

Advisory: UBI Reader vulnerable to Path Traversal
IDs: CVE-2022-4572, GHSA-hc37-84v3-8gmq
Record: https://patchnext.com/advisories/cve-2022-4572 (revision 3, source checked 26 Oct 2026, 13:27 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: ubi-reader 0.8.5. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI ubi-reader: affected < 0.8.5; fixed in 0.8.5

## Suggested inspection (read-only)
- `python -m pip show ubi-reader`: prints the installed version. Run with the environment that serves production active.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on ubi-reader.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-hc37-84v3-8gmq (OSV record GHSA-hc37-84v3-8gmq lists affected ranges: PyPI ubi-reader >=0 <0.8.5 (fixed))
- Verified: https://github.com/advisories/GHSA-hc37-84v3-8gmq (GitHub-reviewed advisory GHSA-hc37-84v3-8gmq lists affected ranges: PyPI ubi-reader >=0 <0.8.5)

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