HOMEVULNERABILITIESCVE-2020-9296
CRITICAL

CVE-2020-9296

CWE-917Published: June 16, 2020· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

Netflix Titus uses Java Bean Validation (JSR 380) custom constraint validators. When building custom constraint violation error messages, different types of interpolation are supported, including Java EL expressions. If an attacker can inject arbitrary data in the error message template being passed to ConstraintValidatorContext.buildConstraintViolationWithTemplate() argument, they will be able to run arbitrary Java code.

NVD Source

Technical Analysis

CVE-2020-9296 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

netflix1 product(s)
conductor
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

ADVISORYhttps://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2020-002.md
ADVISORYhttps://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2020-002.md

All References (2)

→
https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2020-002.mdThird Party Advisory
→
https://github.com/Netflix/security-bulletins/blob/master/advisories/nflx-2020-002.mdThird Party Advisory

Quick Facts

CVE IDCVE-2020-9296
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-917
CISA KEVNo
Affected1 vendor(s)
PublishedJun 16, 2020

Related CVEs (CWE-917)

CVE-2025-3322
10.0
CVE-2019-11949
9.8
CVE-2019-5916
9.8
CVE-2019-5352
9.8
CVE-2019-5387
9.8
CVE-2019-5358
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-9296 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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