CVE-2021-41256

Name: CVE-2021-41256
Creator: NVD / NIST
Published: 2021-11-30T21:15:08.227+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 1.08%

Last modified Jun 17, 2026

CVE-2021-41256 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. nextcloud news-android is an Android client for the Nextcloud news/feed reader app. In affected versions the Nextcloud News for Android app has a security issue by which a malicious application installed on the same device can send it an arbitrary Intent that gets reflected back, unintentionally giving read and write access to non-exported Content Providers in Nextcloud News for Android. EPSS estimates a 1.08% chance of exploitation in the next 30 days.

Description

nextcloud news-android is an Android client for the Nextcloud news/feed reader app. In affected versions the Nextcloud News for Android app has a security issue by which a malicious application installed on the same device can send it an arbitrary Intent that gets reflected back, unintentionally giving read and write access to non-exported Content Providers in Nextcloud News for Android. Users should upgrade to version 0.9.9.63 or higher as soon as possible.

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

1.08%

60.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-829

Affected Software

Vendor	Product	Versions
Nextcloud	News	< 0.9.9.63

References

https://github.com/nextcloud/news-android/blob/master/security/GHSL-2021-1033_Nextcloud_News_for_Android.mdExploit, Third Party Advisory
https://github.com/nextcloud/news-android/commit/05449cb666059af7de2302df9d5c02997a23df85Patch, Third Party Advisory
https://github.com/nextcloud/news-android/security/advisories/GHSA-2q9v-q3cc-h9f3Patch, Third Party Advisory
https://github.com/nextcloud/news-android/blob/master/security/GHSL-2021-1033_Nextcloud_News_for_Android.mdExploit, Third Party Advisory
https://github.com/nextcloud/news-android/commit/05449cb666059af7de2302df9d5c02997a23df85Patch, Third Party Advisory
https://github.com/nextcloud/news-android/security/advisories/GHSA-2q9v-q3cc-h9f3Patch, Third Party Advisory

Timeline

Published: Nov 30, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41256?

How severe is CVE-2021-41256?

CVE-2021-41256 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 1.08% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41256?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41256?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST