Security readout for executives and security teams
Plain-English summary
CVE-2026-20613 is a path traversal flaw in Apple Container and Containerization archive extraction. If a user loads a malicious or careless container image archive, files may be written to user-writable locations outside the intended extraction path. This can affect confidentiality, integrity, and availability on the local system.
Executive priority
Prioritize remediation for developer machines, CI systems, and build hosts that handle external container image archives. Business urgency is high where untrusted images are routinely imported.
Technical view
ArchiveReader.extractContents(), used by cctl image load and container image load, did not validate archive member pathnames before extraction. Relative pathnames could cause writes to arbitrary user-writable locations. The issue is classified as CWE-22 and is addressed in container 0.8.0 and containerization 0.21.0.
Likely exposure
Exposure is mainly local developer or build environments where Apple Container or Containerization load container image archives. Systems processing untrusted or externally supplied image archives are at higher risk.
Exploitation context
The CVSS vector indicates local access, low complexity, no privileges, and required user interaction. The provided sources do not report active exploitation, and the CVE is not marked KEV.
Researcher notes
Evidence is limited to the CVE record and Apple advisory. The bug is a pathname validation failure during archive extraction, not a remotely reachable network service issue based on the supplied CVSS vector.
Mitigation direction
- Upgrade Apple container to 0.8.0 or later.
- Upgrade Apple containerization to 0.21.0 or later.
- Avoid loading untrusted container image archives until updated.
- Review Apple’s GitHub advisory for any additional vendor guidance.
Validation and detection
- Inventory systems using Apple Container or Containerization.
- Confirm installed versions meet the fixed releases.
- Identify workflows that load third-party or user-supplied image archives.
- Review recent image-load activity where untrusted archives were processed.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-22: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupContainer behavior lookup
The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-20613 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.