Vulnerability-Lookup

Vulnerability from bitnami_vulndb

Published

2026-07-12 23:48

Modified

2026-07-13 00:08

Summary

Nextcloud: PIN bypass in PassCodeActivity via back button

Details

Nextcloud is an open source content collaboration platform. From version 33.0.0 to before version 33.1.0, after unlocking a locked Android phone the back-button could be used to bypass the Nextcloud Files app PIN. This issue has been patched in version 33.1.0.

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Bitnami",
        "name": "nextcloud",
        "purl": "pkg:bitnami/nextcloud"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "33.0.0"
            },
            {
              "fixed": "33.1.0"
            }
          ],
          "type": "SEMVER"
        }
      ],
      "severity": [
        {
          "score": "CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N",
          "type": "CVSS_V3"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-45153"
  ],
  "database_specific": {
    "cpes": [
      "cpe:2.3:a:nextcloud:nextcloud:*:*:*:*:*:android:*:*"
    ],
    "severity": "Medium"
  },
  "details": "Nextcloud is an open source content collaboration platform. From version 33.0.0 to before version 33.1.0, after unlocking a locked Android phone the back-button could be used to bypass the Nextcloud Files app PIN. This issue has been patched in version 33.1.0.",
  "id": "BIT-nextcloud-2026-45153",
  "modified": "2026-07-13T00:08:34.851Z",
  "published": "2026-07-12T23:48:00.245Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/nextcloud/android/pull/16896"
    },
    {
      "type": "WEB",
      "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2w7v-5299-3hw5"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/3625210"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-45153"
    }
  ],
  "schema_version": "1.6.2",
  "summary": "Nextcloud: PIN bypass in PassCodeActivity via back button"
}

CVE-2026-45153 (GCVE-0-2026-45153)

Vulnerability from cvelistv5 – Published: 2026-06-01 16:37 – Updated: 2026-06-01 17:53

Title

Nextcloud: PIN bypass in PassCodeActivity via back button

Summary

Severity

4.6 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-01 17:53 UTC

CWE

CWE-287 - Improper Authentication

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/nextcloud/security-advisories/…	x_refsource_CONFIRM
https://github.com/nextcloud/android/pull/16896	x_refsource_MISC
https://hackerone.com/reports/3625210	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
nextcloud	security-advisories	Affected: >= 33.0.0, < 33.1.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-45153",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-01T17:53:30.524011Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-06-01T17:53:36.647Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "security-advisories",
          "vendor": "nextcloud",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 33.0.0, \u003c 33.1.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Nextcloud is an open source content collaboration platform. From version 33.0.0 to before version 33.1.0, after unlocking a locked Android phone the back-button could be used to bypass the Nextcloud Files app PIN. This issue has been patched in version 33.1.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "NONE",
            "baseScore": 4.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-287",
              "description": "CWE-287: Improper Authentication",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-01T16:37:12.319Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2w7v-5299-3hw5",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2w7v-5299-3hw5"
        },
        {
          "name": "https://github.com/nextcloud/android/pull/16896",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nextcloud/android/pull/16896"
        },
        {
          "name": "https://hackerone.com/reports/3625210",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/3625210"
        }
      ],
      "source": {
        "advisory": "GHSA-2w7v-5299-3hw5",
        "discovery": "UNKNOWN"
      },
      "title": "Nextcloud: PIN bypass in PassCodeActivity via back button"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-45153",
    "datePublished": "2026-06-01T16:37:12.319Z",
    "dateReserved": "2026-05-08T20:44:38.964Z",
    "dateUpdated": "2026-06-01T17:53:36.647Z",
    "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.

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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Vulnerability from bitnami_vulndb

CVE-2026-45153 (GCVE-0-2026-45153)

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