Is CVE-2026-45687 actively exploited?

No active exploitation of CVE-2026-45687 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-45687 be exploited remotely?

Yes. CVE-2026-45687 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-45687?

CVE-2026-45687 has a CVSS score of 8.5 (HIGH).

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HIGH

CVE-2026-45687

CWE-915Published: June 24, 2026· Updated: Jun 26, 2026

8.5

CVSS v3.1

EPSS:0.21%probability of exploitation in 30 daysPercentile:10.6th

Official Description

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11, Rocket.Chat's sendFileMessage DDP method passes the entire attacker-supplied file object into Uploads.updateFileComplete, which merges it directly into a MongoDB $set update via Object.assign. There is no allow-list of writable fields. An attacker can therefore rewrite any column on their own upload record, notably store and the store-specific path fields. This vulnerability is fixed in 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11.

NVD Source

Technical Analysis

CVE-2026-45687 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 8.5.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.