CVE-2026-53510Public exploitNetwork attack vector

Remote code execution via evaluated WSDL operation names

Published Jul 31, 2026 · Updated Jul 31, 2026

Code injection in Savon 0.9.8 through 2.17.1 allows remote attackers to execute Ruby code through crafted WSDL operation names. Savon::Model.all_operations interpolates each parsed operation name into method-definition source and passes the resulting string to module_eval without neutralizing Ruby syntax. Exploitation requires an application to call all_operations on an attacker-controlled WSDL and grants code execution with that application's privileges.

CVSS severity8.1
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Savon 0.9.8 through 2.17.1 allows remote attackers to execute Ruby code through crafted WSDL operation names. Savon::Model.all_operations interpolates each parsed operation name into method-definition source and passes the resulting string to module_eval without neutralizing Ruby syntax. Exploitation requires an application to call all_operations on an attacker-controlled WSDL and grants code execution with that application's privileges.

The record

CVE
CVE-2026-53510
Published
Jul 31, 2026
Updated
Jul 31, 2026
Vendor
savonrb
Product
Savon
Classifications
CWE-94, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 31, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 31, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 0.9.8, < 2.17.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

savonrb · Savonversion=>= 0.9.8, < 2.17.2

Published CVSS scores

8.1GitHubCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

Public exploit references

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Technologies

Your stack

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Your stack

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