CVE-2026-57848 (GCVE-0-2026-57848)

Vulnerability from cvelistv5 – Published: 2026-07-18 19:15 – Updated: 2026-07-18 19:15
VLAI
Title
Stoat for Android Internal File Disclosure via Exported ShareTargetActivity URI Validation
Summary
Stoat for Android exports the chat.stoat.activities.ShareTargetActivity component (reachable to any process on the device via the android.intent.action.SEND intent) and accepts the file to share as a URI supplied through the android.intent.extra.STREAM extra. The activity does not validate or filter the incoming URI before using it as the outgoing attachment, so a caller can pass a file:// URI pointing at the application's own internal storage (for example /data/data/chat.revolt/databases/revolt.db, cached authentication token files, or preferences) and have the app treat that internal file as a user-selected attachment. An attacker who can invoke intents on the victim's device (via ADB access, a co-installed malicious application, or any other route that reaches Android's intent dispatch) can launch ShareTargetActivity with such a URI and cause the victim, on a single channel-selection interaction, to send the internal file to any Stoat channel or user of the attacker's choosing. The composer displays the attachment as \"attachment\" with no filename indication, so the victim has no visible signal that the file being sent is their own internal application data. Consequences include disclosure of the local Stoat database (message history, contact list, cached content), disclosure of authentication tokens permitting full account takeover, and disclosure of any other file readable by the app process.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
6.8 (Medium)
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-926 - Improper Export of Android Application Components
Assigner
References
Impacted products
Vendor Product Version
stoatchat Stoat for Android Affected: 0 , < 1.6.0 (git)
Create a notification for this product.
Date Public
2026-07-17 00:00
Credits
Monokle
Show details on NVD website
To clipboard 

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          "url": "https://github.com/stoatchat/for-android"
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          "name": "Patch Commit",
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          "url": "https://github.com/stoatchat/for-android/commit/50d5f5143940809ebb5a61e5f507c956c33aa970"
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          "url": "https://www.vulncheck.com/advisories/stoat-for-android-internal-file-disclosure-via-exported-sharetargetactivity-uri-validation"
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      "source": {
        "discovery": "EXTERNAL"
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      "title": "Stoat for Android Internal File Disclosure via Exported ShareTargetActivity URI Validation",
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    "datePublished": "2026-07-18T19:15:18.458Z",
    "dateReserved": "2026-06-25T18:48:00.282Z",
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    "state": "PUBLISHED"
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.