Vulnerability-Lookup

GHSA-XG8H-3F4M-39V6

Vulnerability from github – Published: 2026-07-09 00:31 – Updated: 2026-07-09 00:31

Details

A sandbox escape vulnerability exists in the OpenJDK packages provided in Ubuntu. The .jar MIME handlers installed by these packages execute files marked as executable when the mailcap package is installed. A compromised or malicious sandboxed application with access to the OpenURI portal via xdg-desktop-portal-gtk can write a malicious .jar file to the host file system, set its executable bit, and trigger the handler to execute arbitrary code outside of the sandbox environment.

Severity

8.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

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  "affected": [],
  "aliases": [
    "CVE-2026-10037"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-08T22:17:12Z",
    "severity": "HIGH"
  },
  "details": "A sandbox escape vulnerability exists in the OpenJDK packages provided in Ubuntu. The .jar MIME handlers installed by these packages execute files marked as executable when the mailcap package is installed. A compromised or malicious sandboxed application with access to the OpenURI portal via xdg-desktop-portal-gtk can write a malicious .jar file to the host file system, set its executable bit, and trigger the handler to execute arbitrary code outside of the sandbox environment.",
  "id": "GHSA-xg8h-3f4m-39v6",
  "modified": "2026-07-09T00:31:14Z",
  "published": "2026-07-09T00:31:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10037"
    },
    {
      "type": "WEB",
      "url": "https://bugs.launchpad.net/ubuntu/+source/openjdk-25/+bug/2153100"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-10037 (GCVE-0-2026-10037)

Vulnerability from cvelistv5 – Published: 2026-07-08 21:18 – Updated: 2026-07-09 13:00

Title

Sandbox Escape in Ubuntu OpenJDK Packages via xdg-desktop-portal

Summary

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator (v2.0.3)

CWE

CWE-20 - Improper input validation

Assigner

canonical

References

1 reference

URL	Tags
https://bugs.launchpad.net/ubuntu/+source/openjdk…	issue-tracking

Impacted products

2 products

Vendor	Product	Version
Canonical	Ubuntu
Canonical	Ubuntu	Affected: 0 , < 3.70+nmu1ubuntu1.22.04.1 (custom) Affected: 0 , < 3.70+nmu1ubuntu1.24.04.1 (custom) Affected: 0 , < 3.74ubuntu1.1 (custom) Affected: 0 , < 3.75ubuntu1.1 (custom)

Date Public

2026-07-08 15:46

Credits

Aaron Rainbolt

Show details on NVD website

JSON

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                  },
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                  }
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                "timestamp": "2026-07-09T12:59:49.819408Z",
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-XG8H-3F4M-39V6

CVE-2026-10037 (GCVE-0-2026-10037)

Tags

Sightings

Nomenclature