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CVE-2026-49277

Rocket.Chat: OAuth access and refresh tokens remain valid after account deactivation

Low2.3EPSS 0.31%
Published
Updated
Reserved
Assigned by
GitHub_M

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.

Scores

CVSS scores of CVE-2026-49277, by who scored it
Scored byCVSSScoreVector
GitHub_MCNA (assigner)4.0Low2.3CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
NVDNVD · Deferred4.0Low2.3CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS (exploitation in 30 days)
0.31% · top 76% of all CVEs (6 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 2.3.

Weakness

Affected products

  • RocketChat · Rocket.Chat

    • affected >= 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

References (1)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .