Vulnerability-Lookup

ubuntu-cve-2026-42095

Vulnerability from osv_ubuntu

Published

2026-04-24 15:16

Modified

2026-05-20 15:27

Summary

Details

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL.

Severity

4.0 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-42095	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-42095	REPORT
	https://kde.org/info/security/advisory-20260424-1.txt	REPORT
	https://invent.kde.org/graphics/arianna/-/commit/…	REPORT
	https://invent.kde.org/graphics/arianna/-/commit/…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "arianna",
            "binary_version": "25.08.1-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "arianna",
        "purl": "pkg:deb/ubuntu/arianna@25.08.1-0ubuntu1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "24.12.3-0ubuntu1",
        "25.04.0-0ubuntu1",
        "25.04.1-0ubuntu1",
        "25.04.2-0ubuntu1",
        "25.04.3-0ubuntu1",
        "25.07.80-0ubuntu1",
        "25.07.90-0ubuntu1",
        "25.08.0-0ubuntu1",
        "25.08.1-0ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "arianna",
            "binary_version": "25.12.3-0ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "arianna",
        "purl": "pkg:deb/ubuntu/arianna@25.12.3-0ubuntu1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "25.08.1-0ubuntu1",
        "25.08.2-0ubuntu1",
        "25.08.3-0ubuntu1",
        "25.11.80-0ubuntu1",
        "25.11.90-0ubuntu1",
        "25.12.0-0ubuntu1",
        "25.12.1-0ubuntu1",
        "25.12.1-0ubuntu2",
        "25.12.2-0ubuntu1",
        "25.12.3-0ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL.",
  "id": "UBUNTU-CVE-2026-42095",
  "modified": "2026-05-20T15:27:27Z",
  "published": "2026-04-24T15:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-42095"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-42095"
    },
    {
      "type": "REPORT",
      "url": "https://kde.org/info/security/advisory-20260424-1.txt"
    },
    {
      "type": "REPORT",
      "url": "https://invent.kde.org/graphics/arianna/-/commit/485851d25de279a9d2711d3780443530e9851300"
    },
    {
      "type": "REPORT",
      "url": "https://invent.kde.org/graphics/arianna/-/commit/3cd56fce103ab62887c5592827d78a1197cd926a"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-42095"
  ]
}

CVE-2026-42095 (GCVE-0-2026-42095)

Vulnerability from cvelistv5 – Published: 2026-04-24 00:00 – Updated: 2026-04-24 14:41

Summary

bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL.

Severity

4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

mitre

References

4 references

URL	Tags
https://github.com/KDE/arianna/tags
https://kde.org/info/security/advisory-20260424-1.txt
https://invent.kde.org/graphics/arianna/-/commit/…
https://invent.kde.org/graphics/arianna/-/commit/…

Impacted products

1 product

Vendor	Product	Version
KDE	Arianna	Affected: 0 , < 26.04.1 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-42095",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-04-24T14:41:27.892370Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-04-24T14:41:51.939Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Arianna",
          "vendor": "KDE",
          "versions": [
            {
              "lessThan": "26.04.1",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "bookserver in KDE Arianna before 26.04.1 allows attackers to read files over a socket connection by guessing a URL."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 4,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "CWE-306 Missing Authentication for Critical Function",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-24T14:15:03.734Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/KDE/arianna/tags"
        },
        {
          "url": "https://kde.org/info/security/advisory-20260424-1.txt"
        },
        {
          "url": "https://invent.kde.org/graphics/arianna/-/commit/485851d25de279a9d2711d3780443530e9851300"
        },
        {
          "url": "https://invent.kde.org/graphics/arianna/-/commit/3cd56fce103ab62887c5592827d78a1197cd926a"
        }
      ],
      "x_generator": {
        "engine": "enrichogram 0.0.1"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-42095",
    "datePublished": "2026-04-24T00:00:00.000Z",
    "dateReserved": "2026-04-24T00:00:00.000Z",
    "dateUpdated": "2026-04-24T14:41:51.939Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

ubuntu-cve-2026-42095

Vulnerability from osv_ubuntu

CVE-2026-42095 (GCVE-0-2026-42095)

Tags

Sightings

Nomenclature