What’s Vulnerable › Vulnerabilities
CVE-2026-45687: Rocket.Chat: Authenticated Arbitrary Data Export Theft via Mass Assignment in sendFileMessage
- Severity: high (CVSS 8.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-06-24 · updated 2026-10-25
- Weakness: CWE-915
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.
Affected products
- Rocket.Chat: from 8.5.0-rc.0, < 8.5.0; from 8.4.0-rc.0, < 8.4.1; from 8.3.0-rc.0, < 8.3.3; from 8.2.0-rc.0, < 8.2.3; from 8.1.0-rc.0, < 8.1.4; from 8.0.0-rc.0, < 8.0.5
References
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