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CVE-2026-91462

Опубликовано: 20 окт. 2026
Источник: redhat
CVSS3: 5.9
EPSS Низкий

Описание

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JGSS). 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 multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all 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 5.9 (Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N).

A flaw was found in the Java Generic Security Services (JGSS) component of OpenJDK. An unauthenticated remote attacker could exploit this vulnerability by submitting specially crafted requests to exposed application programming interfaces (APIs), such as through a web service. A successful attack allows the unauthorized creation, deletion, or modification of critical data accessible to the application.

Отчет

This vulnerability is rated with a Moderate severity rather than Important because exploitation involves high attack complexity and specifically depends on custom Java deployments exposing JGSS Kerberos token parsing to unauthenticated network input. In standard Red Hat Enterprise Linux environments, OpenJDK provides underlying cryptographic and authentication libraries, but exploitation cannot occur automatically without an application processing untrusted authentication tokens. Additionally, successful exploitation affects data integrity without directly threatening system availability or data confidentiality.

Затронутые пакеты

ПлатформаПакетСостояниеРекомендацияРелиз
Red Hat build of OpenJDK 1.8java-1.8.0-openjdk-portableAffected
Red Hat build of OpenJDK 1.8java-1.8.0-openjdk-windowsAffected
Red Hat Enterprise Linux 10java-21-ibm-semeru-certified-jdkAffected
Red Hat Enterprise Linux 6java-1.6.0-openjdkOut of support scope
Red Hat Enterprise Linux 6java-1.7.0-openjdkOut of support scope
Red Hat Enterprise Linux 6java-1.8.0-openjdkOut of support scope
Red Hat Enterprise Linux 7java-1.6.0-openjdkOut of support scope
Red Hat Enterprise Linux 7java-1.7.0-openjdkOut of support scope
Red Hat Enterprise Linux 7java-1.8.0-openjdkAffected
Red Hat Enterprise Linux 8java-1.8.0-ibmAffected

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Дополнительная информация

Статус:

Moderate
Дефект:
CWE-354
https://bugzilla.redhat.com/show_bug.cgi?id=2557236openjdk: Enhance krb5 tokens (Oracle CPU 2026-10)

EPSS

Процентиль: 20%
0.00274
Низкий

5.9 Medium

CVSS3

Связанные уязвимости

CVSS3: 5.9
ubuntu
19 дней назад

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JGSS). 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 multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all 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 ser...

CVSS3: 5.9
nvd
19 дней назад

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JGSS). 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 multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all 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 servic

CVSS3: 5.9
debian
19 дней назад

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle Gr ...

CVSS3: 5.9
github
19 дней назад

Vulnerability in the Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition product of Oracle Java SE (component: JGSS). 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 multiple protocols to compromise Oracle Java SE, Oracle GraalVM for JDK, Oracle GraalVM Enterprise Edition. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all 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 ser...

rocky
11 дней назад

Important: java-17-openjdk security update for Rocky Linux 8

EPSS

Процентиль: 20%
0.00274
Низкий

5.9 Medium

CVSS3