CVE-2020-9296Network attack vector

Unauthenticated code execution via Java EL interpolation

Published Jun 16, 2020 · Updated Aug 4, 2024

Server-side template injection in Netflix Titus before 0.1.1-rc.274 allows remote attackers to execute arbitrary Java code. The Titus control plane passes attacker-influenced constraint values to ConstraintValidatorContext.buildConstraintViolationWithTemplate(), whose interpolation evaluates embedded Java EL expressions. A crafted unauthenticated job request therefore executes code with the Titus service account's privileges.

CVSS severity9.8
Critical
EPSS probability1.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side template injection in Netflix Titus before 0.1.1-rc.274 allows remote attackers to execute arbitrary Java code. The Titus control plane passes attacker-influenced constraint values to ConstraintValidatorContext.buildConstraintViolationWithTemplate(), whose interpolation evaluates embedded Java EL expressions. A crafted unauthenticated job request therefore executes code with the Titus service account's privileges.

The record

CVE
CVE-2020-9296
Published
Jun 16, 2020
Updated
Aug 4, 2024
Vendor
Netflix
Product
Titus
Classifications
CWE-917, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 16, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record 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=All versions prior to version v0.1.1-rc.274

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Netflix · Titusversion=All versions prior to version v0.1.1-rc.274

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-917Improper Neutralization of Special Elements used in an Expression Language Statement ('Expression Language Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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