CVE-2026-48929
Rocket.Chat Unauthenticated File Deletion
Description
Rocket.Chat in versions <8.5.1, <8.4.4, <8.3.6, <8.2.6, <8.1.6, <8.0.7, <7.13.9, and <7.10.13 is vulnerable to unauthenticated file deletion. The deleteFileMessage Meteor method permanently deletes any uploaded file by ID without requiring authentication. When called via an unauthenticated DDP WebSocket connection, Meteor.userId() returns null, causing the authorization check to be skipped. Execution falls through to FileUpload.getStore('Uploads').deleteById(fileID), which removes the file from storage and database unconditionally. File IDs are discoverable from public channel message payloads and download URLs.
INFO
Published Date :
June 17, 2026, 1:20 p.m.
Last Modified :
June 18, 2026, 7:04 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.0 | HIGH | MITRE-CVE | ||||
| CVSS 3.0 | HIGH | [email protected] |
Solution
- Update Rocket.Chat to a recent version.
- Verify file deletion authorization checks.
- Remove direct file ID exposure.
- Monitor for unauthorized file access.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-48929.
| URL | Resource |
|---|---|
| https://github.com/RocketChat/Rocket.Chat/pull/40889/ | Issue Tracking Patch Third Party Advisory |
| https://hackerone.com/reports/3611837 | Third Party Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-48929 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-48929
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-48929 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-48929 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Jun. 18, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* versions up to (excluding) 7.10.13 *cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* versions from (including) 7.13.0 up to (excluding) 7.13.9 *cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.0.7 *cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* versions from (including) 8.1.0 up to (excluding) 8.1.6 *cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* versions from (including) 8.2.0 up to (excluding) 8.2.6 *cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* versions from (including) 8.3.0 up to (excluding) 8.3.6 *cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* versions from (including) 8.4.0 up to (excluding) 8.4.4 *cpe:2.3:a:rocket.chat:rocket.chat:*:*:*:*:*:*:*:* versions from (including) 8.5.0 up to (excluding) 8.5.1 Added Reference Type HackerOne: https://github.com/RocketChat/Rocket.Chat/pull/40889/ Types: Issue Tracking, Patch, Third Party Advisory Added Reference Type HackerOne: https://hackerone.com/reports/3611837 Types: Third Party Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-48929', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-06-17T15:02:38.629156Z'} -
New CVE Received by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Rocket.Chat', 'product': 'Rocket.Chat', 'versions': [{'status': 'affected', 'version': '0', 'lessThan': '8.5.1', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '8.4.4', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '8.3.6', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '8.2.6', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '8.1.6', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '8.0.7', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '7.13.9', 'versionType': 'semver'}, {'status': 'affected', 'version': '0', 'lessThan': '7.10.13', 'versionType': 'semver'}], 'defaultStatus': 'unaffected'}] Added Description Rocket.Chat in versions <8.5.1, <8.4.4, <8.3.6, <8.2.6, <8.1.6, <8.0.7, <7.13.9, and <7.10.13 is vulnerable to unauthenticated file deletion. The deleteFileMessage Meteor method permanently deletes any uploaded file by ID without requiring authentication. When called via an unauthenticated DDP WebSocket connection, Meteor.userId() returns null, causing the authorization check to be skipped. Execution falls through to FileUpload.getStore('Uploads').deleteById(fileID), which removes the file from storage and database unconditionally. File IDs are discoverable from public channel message payloads and download URLs. Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-287 Added Reference https://github.com/RocketChat/Rocket.Chat/pull/40889/ Added Reference https://hackerone.com/reports/3611837