CVE-2026-22013: Openjdk 8 · Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise
Affects openjdk-8Source GCVE Database
Not known to be exploited · CVSS 5.3 Medium · fixed in 8u492-ga~us2-0ubuntu1~16.04.1 : update openjdk-8 when convenient.
Data as of 9 Nov 2026, 23:34 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 17% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 8u492-ga~us2-0ubuntu1~16.04.1, 11.0.31+11-1ubuntu1~18.04.2, 17.0.19+10-1~18.04.2 +33
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:NExploitation evidence
Disclosed: evidence found.
CVE published 21 Apr 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 9 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Patches and advisories
- ubuntu.com/security/notices/USN-8330-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8331-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8332-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8333-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8334-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8327-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8328-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8339-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8341-1 (opens in a new tab)
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.10openjdk-17-cracpkg:deb/ubuntu/openjdk-17-crac?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10openjdk-21-cracpkg:deb/ubuntu/openjdk-21-crac?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10openjdk-25-cracpkg:deb/ubuntu/openjdk-25-crac?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.10openjdk-8pkg:deb/ubuntu/openjdk-8?arch=source&distro=stonkingOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSopenjdk-17pkg:deb/ubuntu/openjdk-17?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSopenjdk-17-cracpkg:deb/ubuntu/openjdk-17-crac?arch=source&distro=resoluteOther 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
Patches are available for all affected versions as listed in the established facts and linked Ubuntu security notices. Users should apply these official updates promptly to remediate the vulnerability. No additional mitigation actions are required beyond applying the vendor-provided patches.
Description
A vulnerability exists in Oracle Java SE, Oracle GraalVM for JDK, and Oracle GraalVM Enterprise Edition affecting multiple versions including Java SE 8u481 and later updates. The flaw is in the JGSS component and allows an unauthenticated attacker with network access to potentially gain unauthorized access to critical data. Exploitation requires user interaction and is considered difficult. This vulnerability primarily affects Java deployments running sandboxed Java Web Start applications or applets that load untrusted code. Server deployments running only trusted code are not affected. The CVSS 3.1 base score is 5.3, indicating a medium severity with confidentiality impact only. Patches are available for all affected versions.
References
- ubuntu.com/security/CVE-2026-22013 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-22013 (opens in a new tab)
- openjdk.org/groups/vulnerability/advisories/2026-04-21 (opens in a new tab)
- ubuntu.com/security/notices/USN-8330-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8331-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8332-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8333-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8334-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8327-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8328-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8339-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8341-1 (opens in a new tab)