Security readout for executives and security teams
Plain-English summary
DevToys versions 2.0.0.0 through before 2.0.9.0 can mishandle files inside extension packages. A malicious extension could write files outside the intended extension folder, potentially damaging files or enabling code execution under the user’s privileges. The vendor states this is fixed in 2.0.9.0.
Executive priority
Treat as a high-priority workstation remediation item, not an internet-facing emergency. Patch developer machines promptly, especially where third-party extensions are used. No cited source confirms active exploitation.
Technical view
CVE-2026-22685 is a CWE-22 path traversal, commonly called Zip Slip, in DevToys extension NUPKG extraction. Archive entries are not sufficiently path-validated, allowing writes outside the extensions directory. Impact is confidentiality, integrity, and availability loss with CVSS 3.1 score 8.8. User interaction is required because a malicious extension package must be processed.
Likely exposure
Exposure is limited to systems running DevToys >= 2.0.0.0 and < 2.0.9.0, especially where users install extensions from untrusted or unverified sources. The issue affects local desktops with the privileges of the DevToys process.
Exploitation context
The source bundle does not report active exploitation, and this CVE is not marked as KEV. Practical abuse depends on convincing a user or workflow to install a crafted DevToys extension package.
Researcher notes
The key security boundary is archive extraction path validation during DevToys extension installation. Public references include the GitHub advisory, pull request, and fixing commit. Evidence provided names the fixed version but does not include observed exploitation details.
Mitigation direction
- Upgrade DevToys to version 2.0.9.0 or later.
- Avoid installing DevToys extensions from untrusted sources.
- Review vendor advisory and release notes for any additional guidance.
- Prioritize developer workstations that frequently test third-party extensions.
Validation and detection
- Inventory DevToys installations and record installed versions.
- Confirm affected systems are not running versions before 2.0.9.0.
- Identify users or systems that installed untrusted extension packages.
- Review affected systems for unexpected file changes if suspicious packages were installed.
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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupFile access behavior lookup
The CVE wording references file access or upload behavior, so file telemetry and web shell review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-22685 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
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/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:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/DevToys-app/DevToys/security/advisories/GHSA-ggxr-h6fm-p2qhCVE reference · x_refsource_CONFIRM
- https://github.com/DevToys-app/DevToys/pull/1643CVE reference · x_refsource_MISC
- https://github.com/DevToys-app/DevToys/commit/02fb7d46d9c663a4ee6ed968baa6a8810405047fCVE reference · x_refsource_MISC
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.