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Description

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.2, 8.3.4, 8.2.4, 8.1.5, 8.0.6, 7.13.8, and 7.10.12, Rocket.Chat does not revoke OAuth bearer or refresh tokens when a user is deactivated. A deactivated user can continue using an existing OAuth access token, and can also mint a fresh access token from an existing refresh token. This vulnerability is fixed in 8.5.0, 8.4.2, 8.3.4, 8.2.4, 8.1.5, 8.0.6, 7.13.8, and 7.10.12.

PUBLISHED Reserved 2026-05-28 | Published 2026-06-24 | Updated 2026-06-26 | Assigner GitHub_M




LOW: 2.3CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-613: Insufficient Session Expiration

Product status

>= 8.5.0-rc.0, < 8.5.0
affected

>= 8.4.0-rc.0, < 8.4.2
affected

>= 8.3.0-rc.0, < 8.3.4
affected

>= 8.2.0-rc.0, < 8.2.4
affected

>= 8.1.0-rc.0, < 8.1.5
affected

>= 8.0.0-rc.0, < 8.0.6
affected

>= 7.11.0-rc.0, < 7.13.8
affected

< 7.10.12
affected

References

github.com/...t.Chat/security/advisories/GHSA-39hg-492f-3c4f

cve.org (CVE-2026-49277)

nvd.nist.gov (CVE-2026-49277)

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