CVE-2026-35454 json
Code Extension Marketplace has a Zip Slip Path Traversal
published 2026-04-04 7 mo ago modified 2026-07-24 3 mo ago also GHSA-8x9r-hvwg-c55h , GO-2026-5270 , EUVD-2026-19537
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 28%
- public exploits
- 0
- none known
Summary
The Code Extension Marketplace is an open-source alternative to the VS Code Marketplace. Prior to 2.4.2, Zip Slip vulnerability in coder/code-marketplace allowed a malicious VSIX file to write arbitrary files outside the extension directory. ExtractZip passed raw zip entry names to a callback that wrote files via filepath.Join with no boundary check; filepath.Join resolved .. components but did not prevent the result from escaping the base path. This vulnerability is fixed in 2.4.2.
Patch / fix
- go github.com/coder/code-marketplace 1.2.3-0.20260402184705-988440dee05f
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260723T184607-160000.1.1
opensuse advisories openSUSE-SU-2026:21483-1
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 7 mo ago
Exploit prediction
0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 8.7 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/coder/code-marketplace | <1.2.3-0.20260402184705-988440dee05f |
1.2.3-0.20260402184705-988440dee05f |
Affected products
- coder code-marketplace
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
References
-
github.com
/coder/code-marketplace/commit/988440dee05fceef8400ed725badc604dbf90792
web, patch
-
github.com
/coder/code-marketplace/security/advisories/GHSA-8x9r-hvwg-c55h
web, third-party-advisory, advisory
-
github.com
/coder/code-marketplace/releases/tag/v2.4.2
web, release-notes
-
nvd.nist.gov
/vuln/detail/CVE-2026-35454
advisory
-
github.com
/coder/code-marketplace
package
Sources
- CVE List CVE-2026-35454
- GitHub Advisory GHSA-8x9r-hvwg-c55h
- NVD CVE-2026-35454
- OSV GO-2026-5270
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.