RocketChat Rocket.Chat up to 8.4.x REST Endpoint session expiration

Summaryinfo

A vulnerability, which was classified as problematic, has been found in RocketChat Rocket.Chat up to 8.4.x. The impacted element is an unknown function of the component REST Endpoint. This manipulation causes session expiration. This vulnerability appears as CVE-2026-45757. The attack may be initiated remotely. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in RocketChat Rocket.Chat up to 8.4.x. It has been declared as problematic. Affected by this vulnerability is an unknown functionality of the component REST Endpoint. The manipulation with an unknown input leads to a session expiration vulnerability. The CWE definition for the vulnerability is CWE-613. According to WASC, "Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization." As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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 allows users deactivated through users.deactivateIdle to keep using already-issued login tokens. A user that an administrator has marked inactive for idleness can still access authenticated REST endpoints with the old 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.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-45757 since 05/13/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.

Upgrading to version 7.10.12, 7.13.8, 8.0.6, 8.1.5, 8.2.4, 8.3.4, 8.4.2 or 8.5.0 eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Chat Software

Vendor

• RocketChat

Name

• Rocket.Chat

Version

• 7.10.0
• 7.10.1
• 7.10.2
• 7.10.3
• 7.10.4
• 7.10.5
• 7.10.6
• 7.10.7
• 7.10.8
• 7.10.9
• 7.10.10
• 7.10.11
• 7.13.0
• 7.13.1
• 7.13.2
• 7.13.3
• 7.13.4
• 7.13.5
• 7.13.6
• 7.13.7
• 8.0
• 8.0.0
• 8.0.1
• 8.0.2
• 8.0.3
• 8.0.4
• 8.0.5
• 8.1
• 8.1.0
• 8.1.1
• 8.1.2
• 8.1.3
• 8.1.4
• 8.2
• 8.2.0
• 8.2.1
• 8.2.2
• 8.2.3
• 8.3
• 8.3.0
• 8.3.1
• 8.3.2
• 8.3.3
• 8.4
• 8.4.0
• 8.4.1

License

• free

Website

• Product: https://github.com/RocketChat/Rocket.Chat/

CPE 2.3info

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Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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