CVE-2026-83368Network attack vector

Unauthenticated data access, modification, and service disruption

Published Sep 15, 2026 · Updated Sep 15, 2026

Compiler vulnerability in Oracle GraalVM products allows remote attackers to read critical data, alter some data, and disrupt service via HTTP. Oracle has not disclosed the faulty compiler operation or how HTTP-supplied input reaches it. Exploitation requires no authentication or user interaction but has high attack complexity; successful attacks expose all accessible data while permitting limited modification and disruption.

CVSS severity7.0
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Compiler vulnerability in Oracle GraalVM products allows remote attackers to read critical data, alter some data, and disrupt service via HTTP. Oracle has not disclosed the faulty compiler operation or how HTTP-supplied input reaches it. Exploitation requires no authentication or user interaction but has high attack complexity; successful attacks expose all accessible data while permitting limited modification and disruption.

The record

CVE
CVE-2026-83368
Published
Sep 15, 2026
Updated
Sep 15, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
Unavailable
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.0OracleCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L

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

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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