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CVE-2026-45687

HIGH
8.5
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-45687
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-05-13 04:38 UTC
Published
2026-06-24 20:55 UTC
Last updated
2026-06-24 20:55 UTC
Primary CWE
CWE-915
CWE-915: Improperly Controlled Modification of Dynamically-D…
Vendor / Product
RocketChat / Rocket.Chat
Sources
cve.org  ·  NVD

Severity & Metrics

8.5 HIGH CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
Affected products (1)
VendorProductPlatformVersions
RocketChat Rocket.Chat — >= 8.5.0-rc.0, < 8.5.0, >= 8.4.0-rc.0, < 8.4.1, >= 8.3.0-rc.0, < 8.3.3, >= 8.2.0-rc.0, < 8.2.3 …
Weakness (CWE)
CWESourceDescription
CWE-915 cna CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes
CVSS scores (1)
ScoreSeverityVersionSourceVector
8.5 HIGH 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N
References (1)
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