Red Hat Security Advisory: OpenJDK 8u482 Windows Security Update
Affects Red HatSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 4.8 Medium.
Data as of 30 Oct 2026, 06:16 UTC
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 20 Jan 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 29 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Oracle CorporationOracle Java SE | Affected
| Fixed in– |
| Oracle CorporationOracle GraalVM for JDK | Affected
| Fixed in– |
| Oracle CorporationOracle GraalVM Enterprise Edition | Affected
| Fixed in– |
Mavencom.oracle/java-sepkg:maven/com.oracle/java-seOther 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
Apply the OpenJDK 8u482 update from Red Hat for Windows, which replaces version 8u472 and includes fixes for the identified vulnerabilities. Before updating, ensure all previously released relevant errata are installed as per Red Hat's update instructions. No additional mitigation steps are indicated by Red Hat.
Description
Red Hat has released an important security update for its OpenJDK 8 build on Windows, version 8u482, replacing 8u472. This update addresses multiple security issues including improvements to JMX connections, URI handling, HTTP server request processing, and certificate checking. These fixes mitigate vulnerabilities identified by CVE-2026-21925, CVE-2026-21932, CVE-2026-21933, and CVE-2026-21945. Users are advised to apply this update after ensuring all prior relevant errata are installed.
References
- access.redhat.com/errata/RHSA-2026:0896 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- docs.redhat.com/en/documentation/red_hat_build_of_openjdk/8/html/release_notes_for_red_hat_build_of_openjdk_8.0.482/index (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_0896.json (opens in a new tab)