CVE-2026-55762

highpriority · track · 0OT risk · elevatedEPSS 0.005 · 41 %ileEU

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.47% (41st) EPSS

CVSS 8.1 · high

Is it mine?

7 products

Check your exposure

Who says so?

2 sources

cnnvd · enisa_euvd

EPSS · scored 2026-10-27

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13, the POST /api/v1/fingerprint REST endpoint enforces authentication (authRequired: true) but performs no authorization check. Any authenticated user — including a standard user role account — can call this endpoint with {"setDeploymentAs": "new-workspace"} to permanently deregister the workspace from Rocket.Chat Cloud. This wipes all cloud credentials, removes the workspace license, breaks push notifications for all users, and requires manual re-registration to recover. This vulnerability is fixed in 8.5.1, 8.4.4, 8.3.6, 8.2.6, 8.1.6, 8.0.7, and 7.10.13.

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hsecondary · ENISA EU

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hsecondary · security-advisories@github.comexploitability 2.8 · impact 5.2

v3.17.4highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-862US

affected products (7)

Products and version ranges known to be affected.

RocketChat Rocket.Chat≤ < 7.10.13enisa_euvdEU
RocketChat Rocket.Chat7.11.0-rc.0, → 8.0.7enisa_euvdEU
RocketChat Rocket.Chat8.1.0-rc.0, → 8.1.6enisa_euvdEU
RocketChat Rocket.Chat8.2.0-rc.0, → 8.2.6enisa_euvdEU
RocketChat Rocket.Chat8.3.0-rc.0, → 8.3.6enisa_euvdEU
RocketChat Rocket.Chat8.4.0-rc.0, → 8.4.4enisa_euvdEU
RocketChat Rocket.Chat8.5.0-rc.0, → 8.5.1enisa_euvdEU

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd NVD CVE.org MITRE

published 2026-06-24modified 2026-10-25

references (3)

External citations — patches, advisories, analysis.

scry

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