usn-7997-1
Vulnerability from osv_ubuntu
Published
2026-02-02 18:10
Modified
2026-06-30 15:54
Summary
openjdk-17-crac vulnerabilities
Details

It was discovered that the RMI component of CRaC JDK 17 would establish RMI TCP endpoint connections to a remote host without setting an endpoint identification algorithm. An unauthenticated remote attacker could possibly use this issue to steal sensitive information. (CVE-2026-21925)

Mingijung discovered that the AWT and JavaFX componenets of CRaC JDK 17 could run programs if Desktop.browse() was supplied a filename as a URI. An unauthenticated remote attacker could possibly use this issue to execute arbitrary code. (CVE-2026-21932)

Zhihui Chen discovered that the Networking component of CRaC JDK 17 was suceptible to a CRLF injection vulnerability via the HttpServer class. An unauthenticated remote attacker could possibly use this issue to modify files or leak sensitive information. (CVE-2026-21933)

Ireneusz Pastusiak discovered that the Security component of CRaC JDK 17 failed to verify provided URIs point to a legitimate source when AIA is enabled. An unauthenticated remote attacker could possibly use this issue to redirect users to malicious hosts. (CVE-2026-21945)

In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.

Please see the following for more information: https://openjdk.org/groups/vulnerability/advisories/2026-01-20

References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2026-21925",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-21932",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-21933",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2026-21945",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "openjdk-17-crac-demo",
            "binary_version": "17.0.18+8-0ubuntu1~25.10"
          },
          {
            "binary_name": "openjdk-17-crac-jdk",
            "binary_version": "17.0.18+8-0ubuntu1~25.10"
          },
          {
            "binary_name": "openjdk-17-crac-jdk-headless",
            "binary_version": "17.0.18+8-0ubuntu1~25.10"
          },
          {
            "binary_name": "openjdk-17-crac-jre",
            "binary_version": "17.0.18+8-0ubuntu1~25.10"
          },
          {
            "binary_name": "openjdk-17-crac-jre-headless",
            "binary_version": "17.0.18+8-0ubuntu1~25.10"
          },
          {
            "binary_name": "openjdk-17-crac-jre-zero",
            "binary_version": "17.0.18+8-0ubuntu1~25.10"
          },
          {
            "binary_name": "openjdk-17-crac-source",
            "binary_version": "17.0.18+8-0ubuntu1~25.10"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "openjdk-17-crac",
        "purl": "pkg:deb/ubuntu/openjdk-17-crac@17.0.18+8-0ubuntu1~25.10?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "17.0.18+8-0ubuntu1~25.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "17.0.14+7-0ubuntu1",
        "17.0.15+6-0ubuntu1",
        "17.0.16+8-0ubuntu1",
        "17.0.17+10-0ubuntu1~25.10"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the RMI component of CRaC JDK 17 would establish\nRMI TCP endpoint connections to a remote host without setting an\nendpoint identification algorithm. An unauthenticated remote attacker\ncould possibly use this issue to steal sensitive information.\n(CVE-2026-21925)\n\nMingijung discovered that the AWT and JavaFX componenets of CRaC JDK 17\ncould run programs if Desktop.browse() was supplied a filename as a\nURI. An unauthenticated remote attacker could possibly use this issue\nto execute arbitrary code. (CVE-2026-21932)\n\nZhihui Chen discovered that the Networking component of CRaC JDK 17\nwas suceptible to a CRLF injection vulnerability via the HttpServer\nclass. An unauthenticated remote attacker could possibly use this\nissue to modify files or leak sensitive information. (CVE-2026-21933)\n\nIreneusz Pastusiak discovered that the Security component of CRaC JDK\n17 failed to verify provided URIs point to a legitimate source when\nAIA is enabled. An unauthenticated remote attacker could possibly\nuse this issue to redirect users to malicious hosts.\n(CVE-2026-21945)\n\nIn addition to security fixes, the updated packages contain bug fixes,\nnew features, and possibly incompatible changes.\n\nPlease see the following for more information:\nhttps://openjdk.org/groups/vulnerability/advisories/2026-01-20",
  "id": "USN-7997-1",
  "modified": "2026-06-30T15:54:46Z",
  "published": "2026-02-02T18:10:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7997-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-21925"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-21932"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-21933"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-21945"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "openjdk-17-crac vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2026-21925",
    "UBUNTU-CVE-2026-21932",
    "UBUNTU-CVE-2026-21933",
    "UBUNTU-CVE-2026-21945"
  ]
}



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