CVE-2021-39215

7.5 highEPSS 1.2%

High (7.5) in 8x8 jitsi meet. EPSS 1.2% chance of exploitation in the next 30 days.

Jitsi Meet is an open source video conferencing application. In versions prior to 2.0.5963, a Prosody module allows the use of symmetrical algorithms to validate JSON web tokens. This means that tokens generated by arbitrary sources can be used to gain authorization to protected rooms. This issue is fixed in Jitsi Meet 2.0.5963. There are no known workarounds aside from updating.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.2% chance of exploitation in the next 30 days; higher than 69% of CVEs (scores of 2026-10-31)
CWE: CWE-287
Published: 2021-09-15
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

8x8:jitsi_meet

References

https://github.com/jitsi/jitsi-meet/pull/9319
https://github.com/jitsi/jitsi-meet/security/advisories/GHSA-45ff-37jm-xjfx
https://github.com/jitsi/jitsi-meet/pull/9319
https://github.com/jitsi/jitsi-meet/security/advisories/GHSA-45ff-37jm-xjfx

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