CVE-2021-32816

Regular expression Denial of Service in ProtonMail

CVSS 6.5 MEDIUMEPSS 1.0%CWE-400

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 1.0%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

14 May 2021Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

ProtonMail Web Client is the official AngularJS web client for the ProtonMail secure email service. ProtonMail Web Client before version 3.16.60 has a regular expression denial-of-service vulnerability. This was fixed in commit 6687fb. There is a full report available in the referenced GHSL-2021-027.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

ProtonMail · WebClient

Want to know if your infrastructure is exposed to this?

Talk to TrueHacking →

References

https://github.com/ProtonMail/WebClient/commit/6687fbb867ef872c96cf4fde68cb6e9c58d3fddc https://securitylab.github.com/advisories/GHSL-2021-027-redos-ProtonMail/