Code Injection in savon (CVE-2026-53510)
Summary
Code injection in savon (CVE-2026-53510). Successful exploitation can lead to full system takeover. Exploitable via module_eval. Mitigation: upgrade to 2.17.2 or later.
Original description
The description as published by the source.
Impact
Savon::Model generated SOAP operation methods by interpolating operation names into Ruby source passed to module_eval. An attacker who can control the operation names of a WSDL, can inject Ruby code that executes in the application process. This affects only the .all_operations class method provided by Savon::Model to automatically register all operations provided by the WSDL. Configuring Savon::Model with trusted operation names via .operations is safe.
Patches
Patched in Savon 2.17.2.
Users should upgrade to 2.17.2 or later.
Workarounds
Avoid .all_operations for untrusted WSDL documents. Use .operations with trusted operation names instead.
Source: GitHub Security Advisories (Global) NVD GitHub Advisory
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2026-53510 has been found in savon.
Attackers can target a specific entry point like module_eval over the network to misuse the product.
Successful exploitation can lead to full system takeover. CVSS score: 8.1/10.
What to do: upgrade savon to 2.17.2 or later.
If unsure, ask your IT team or search "savon CVE-2026-53510" on the vendor's site.
CVE-2026-53510 (savon) — CWE-94 / CVSS v3 8.1
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Attack surface: module_eval
Patched: 2.17.2 — apply immediately
Workaround: Avoid .all_operations for untrusted WSDL documents.
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.
Arbitrary code execution (CWE-94) exists in savon. Attackers reach the vulnerable code path via module_eval without authentication.
Check the vendor advisory for the affected versions of savon. Attack surface: module_eval.
Severity: High (CVSS 8.1/10). Successful exploitation can lead to full system takeover.
Update to 2.17.2.
Workaround: Avoid .all_operations for untrusted WSDL documents.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'savon' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'savon' . | 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
savonを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply temporary workaround mitigate
Avoid `.all_operations` for untrusted WSDL documents.パッチが適用されるまでの応急処置として、Avoid
.all_operationsfor untrusted WSDL documents. を実施。回避策の副作用 (機能低下) を確認した上で。 -
3Apply patch patch
Upgrade savon to 2.17.2ステージング環境で 2.17.2 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を含めること。
-
4Post-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。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
References
- package github.com
- web github.com
- web github.com
- web github.com
- web github.com
- web cve.org
- web github.com