CVE-2026-83357: Openjdk 8 · Vulnerability in the Oracle GraalVM for JDK, Oracle GraalVM product of Oracle Java SE (component: Compiler)
Affects openjdk-8Source GCVE Database
Not known to be exploited · CVSS 8.1 High.
Data as of 31 Oct 2026, 08:20 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 39% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 15 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Mavencom.oracle.graalvm/graalvmpkg:maven/com.oracle.graalvm/graalvmOther threats | Affected
| Fixed in– |
Ubuntu Pro 16.04 LTSopenjdk-8pkg:deb/ubuntu/openjdk-8?arch=source&distro=esm-infra-legacy/xenialOther threats | Affected
| Fixed in– |
Ubuntu 16.04 LTSopenjdk-9pkg:deb/ubuntu/openjdk-9?arch=source&distro=xenialOther threats | Affected
| Fixed in– |
Ubuntu Pro 18.04 LTSopenjdk-ltspkg:deb/ubuntu/openjdk-lts?arch=source&distro=esm-infra/bionicOther threats | Affected
| Fixed in– |
Ubuntu Pro 18.04 LTSopenjdk-17pkg:deb/ubuntu/openjdk-17?arch=source&distro=esm-apps/bionicOther threats | Affected
| Fixed in– |
Ubuntu Pro 18.04 LTSopenjdk-8pkg:deb/ubuntu/openjdk-8?arch=source&distro=esm-apps/bionicOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Oracle has released security patches for this vulnerability in the September 2026 Critical Security Patch Update. It is strongly recommended to apply these official patches promptly to affected Oracle GraalVM for JDK versions. Customers should remain on actively supported versions and ensure timely application of Oracle security patches to mitigate this vulnerability. No alternative mitigations or temporary fixes are indicated in the advisory.
Description
A vulnerability (CVE-2026-83357) exists in the Oracle GraalVM for JDK compiler component affecting specific versions of Oracle GraalVM for JDK 17, 21, and 25. This vulnerability allows a remote unauthenticated attacker with network access via HTTP to potentially take over the affected Oracle GraalVM for JDK installations. The CVSS 3.1 base score is 8.1, indicating high severity with impacts on confidentiality, integrity, and availability. Oracle has released security patches addressing this vulnerability as part of their September 2026 Critical Security Patch Update.