Answer in brief
CVE-2026-45687 records a High severity (CVSS 8.5) vulnerability in Rocket.Chat: Authenticated Arbitrary Data Export Theft via Mass Assignment in sendFileMessage. The current sources do not mark it as known exploited. The current feed maps RocketChat/Rocket.Chat (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps RocketChat/Rocket.Chat (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| RocketChat/Rocket.Chatgeneric | >= 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 || >= 8.1.0-rc.0, < 8.1.4 || >= 8.0.0-rc.0, < 8.0.5 || >= 7.11.0-rc.0, < 7.13.7 || < 7.10.11 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2026-45687 records a High severity (CVSS 8.5) vulnerability in Rocket.Chat: Authenticated Arbitrary Data Export Theft via Mass Assignment in sendFileMessage. The current sources do not mark it as known exploited. The current feed maps RocketChat/Rocket.Chat (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps RocketChat/Rocket.Chat (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| RocketChat/Rocket.Chatgeneric | >= 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 || >= 8.1.0-rc.0, < 8.1.4 || >= 8.0.0-rc.0, < 8.0.5 || >= 7.11.0-rc.0, < 7.13.7 || < 7.10.11 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jun 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
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.
Quoted source text, attributed separately from HOL analysis.