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CVE-2026-35454
medium
CVSS 6.5
Path Traversal in github.com/coder/code-marketplace (CVE-2026-35454)
Summary
path traversal in github.com/coder/code-marketplace (CVE-2026-35454). Data can be tampered with by attackers. Exploitable via ``ExtractZip``. Mitigation: upgrade to `1.2.3-0.20260402184705-988440dee05f` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-35454** has been found in github.com/coder/code-marketplace.
Attackers can target a specific entry point like ``ExtractZip`` over the network to misuse the product.
Data can be tampered with by attackers. CVSS score: 6.5/10.
What to do: upgrade github.com/coder/code-marketplace to **1.2.3-0.20260402184705-988440dee05f** or later.
If unsure, ask your IT team or search "github.com/coder/code-marketplace CVE-2026-35454" on the vendor's site.
CVE-2026-35454 (github.com/coder/code-marketplace) — CWE-22 / CVSS v3 6.5
Attack vector: remote (network-reachable) / no user interaction
Attack surface: `ExtractZip` / `filepath.Join` / `zf.Name` / `AddExtension`
Patched: `1.2.3-0.20260402184705-988440dee05f` — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
❓ What is the problem
**Path traversal** (CWE-22) exists in github.com/coder/code-marketplace. Attackers reach the vulnerable code path via ``ExtractZip`` without authentication.
📍 Affected scope
github.com/coder/code-marketplace — . Attack surface: `ExtractZip` / `filepath.Join` / `zf.Name` / `AddExtension`.
🔥 Severity
Severity: Medium (CVSS 6.5/10). Data can be tampered with by attackers
🔧 How to fix
Update to **1.2.3-0.20260402184705-988440dee05f**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'github.com/coder/code-marketplace' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'github.com/coder/code-marketplace' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で `github.com/coder/code-marketplace` を grep し、稼働しているサービス・バージョンを把握する。
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6Apply patch patch
Upgrade github.com/coder/code-marketplace to 1.2.3-0.20260402184705-988440dee05fステージング環境で 1.2.3-0.20260402184705-988440dee05f に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番では Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
Go
github.com/coder/code-marketplace
[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.2.3-0.20260402184705-988440dee05f"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-35454
- package https://github.com/coder/code-marketplace
- web https://github.com/coder/code-marketplace/releases/tag/v2.4.2
- web https://github.com/coder/code-marketplace/security/advisories/GHSA-8x9r-hvwg-c55h
- web https://github.com/coder/code-marketplace/commit/988440dee05fceef8400ed725badc604dbf90792