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GHSA-7gcf-g7xr-8hxj
Vulnerability in serde_with (GHSA-7gcf-g7xr-8hxj)
Summary
vulnerability in serde_with (GHSA-7gcf-g7xr-8hxj). Risk of unauthorized operations or information disclosure. Exploitable via ``KeyValueMap``. Mitigation: upgrade to `3.21.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **GHSA-7gcf-g7xr-8hxj** has been found in serde_with.
Attackers can target a specific entry point like ``KeyValueMap`` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade serde_with to **3.21.0** or later.
If unsure, ask your IT team or search "serde_with GHSA-7gcf-g7xr-8hxj" on the vendor's site.
GHSA-7gcf-g7xr-8hxj (serde_with) — CWE-20 /
Attack surface: `KeyValueMap`
Patched: `3.21.0` — 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
**A vulnerability** (CWE-20) exists in serde_with. Attackers reach the vulnerable code path via ``KeyValueMap`` without authentication.
📍 Affected scope
serde_with — . Attack surface: `KeyValueMap`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **3.21.0**.
🛡️ 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 'serde_with' .` 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 'serde_with' . | 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 `serde_with` 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 serde_with to 3.21.0ステージング環境で 3.21.0 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
rust
serde_with
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.21.0"}]}]
References
- web https://github.com/jonasbb/serde_with/security/advisories/GHSA-7gcf-g7xr-8hxj
- web https://github.com/jonasbb/serde_with/pull/966
- web https://github.com/jonasbb/serde_with/commit/c8a1d820ea25df01692b367058d587343e199389
- web https://github.com/jonasbb/serde_with/releases/tag/v3.21.0
- web https://github.com/advisories/GHSA-7gcf-g7xr-8hxj