OpenJDK 8 flaws may let remote attackers read or change data
Ubuntu cites four CVEs in Security, JSSE, and JAAS; the notice cuts off before fixes.
52
CVE-2026-91461
Certificate validation flaw in Oracle Java SE JSSE over TLS
- CVSS 3.1
- 3.7 low
- EPSS
- —
- Published
- ·
- Modified
AI analysisSummaries by Vani AI
An improper certificate validation flaw in the JSSE component of Oracle Java SE, GraalVM for JDK, and GraalVM Enterprise Edition lets an unauthenticated attacker with network access over TLS supply data to JSSE APIs, such as through a web service. Exploitation is difficult and does not use untrusted Java Web Start or applets. A successful attack can update, insert, or delete some accessible data. Listed builds of those products are affected.
What to do: Apply Oracle's update for CVE-2026-91461. No workaround is stated.
| Product | Affected |
|---|---|
| Oracle Java SE | 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27 |
| Oracle GraalVM for JDK | 17.0.20.1, 21.0.12.1 |
| Oracle GraalVM Enterprise Edition | 21.3.19.1.1 |
Estimated exposure
No basis for an estimate.
Order-of-magnitude estimate by the model from install counts, market share and public scan data it knows; verify before quoting.
Description · NVD
Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JSSE). Supported versions that are affected are Oracle Java SE: 8u503, 8u503-perf, 11.0.32.1, 17.0.20.1, 21.0.12.1, 25.0.4.1, 27; Oracle GraalVM for JDK: 17.0.20.1 and 21.0.12.1; Oracle GraalVM Enterprise Edition: 21.3.19.1.1. Difficult to exploit vulnerability allows unauthenticated attacker with network access via TLS to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition accessible data. Note: This vulnerability can only be exploited by supplying data to APIs in the specified Component without using Untrusted Java Web Start applications or Untrusted Java applets, such as through a web service. CVSS 3.1 Base Score 3.7 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N).
- Weakness
- CWE-295
- Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
In the news
2 storiesOpenJDK 11 auth flaws may expose or alter data (USN-9010-1)
Ubuntu's notice says remote attackers could modify or read sensitive data via Security, JSSE, and JAAS issues.
38