CVE-2026-20613Public exploit

Arbitrary file write via unchecked archive paths

Published Jan 22, 2026 · Updated Jan 23, 2026

Path traversal in Apple Container 0.7.1 and earlier and Containerization 0.20.1 and earlier allows attackers to write local files via a crafted archive. ArchiveReader.extractContents() appends each untrusted member path to the extraction directory and writes it without rejecting relative components that escape that directory. Exploitation requires a user or dependent application to load the archive; writes remain limited to locations already writable by the loading user and do not elevate privileges.

CVSS severity7.8
High
EPSS probability0.25%
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 Apple Container 0.7.1 and earlier and Containerization 0.20.1 and earlier allows attackers to write local files via a crafted archive. ArchiveReader.extractContents() appends each untrusted member path to the extraction directory and writes it without rejecting relative components that escape that directory. Exploitation requires a user or dependent application to load the archive; writes remain limited to locations already writable by the loading user and do not elevate privileges.

The record

CVE
CVE-2026-20613
Published
Jan 22, 2026
Updated
Jan 23, 2026
Vendor
Apple
Product
Container
Classifications
CWE-22, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 23, 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=unspecified <0.7.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · Containerversion=unspecified <0.7.1
Apple · Containerizationversion=unspecified <0.20.1

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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')
T1204.002User Execution: Malicious File

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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