What is CVE-2021-39215?

CVE-2021-39215 is a high-severity vulnerability in 8x8 Jitsi Meet, classified under Improper Authentication. CVSS score: 7.5/10. Published 2021-09-15.

How severe is CVE-2021-39215?

High severity. CVSS v3 base score is 7.5 out of 10.

Auth bypass in 8x8 Jitsi Meet

CVE-2021-39215

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.

Vulnerability class: Broken Authentication

EPSS: 0.012 (66.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

8x8 Jitsi_meet — versions 2.0.5963
Jitsi Jitsi-meet — versions < 2.0.5963

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

security-advisories@github.com (x_refsource_CONFIRM, Third Party Advisory)
security-advisories@github.com (Patch, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-39215?: CVE-2021-39215 is a high-severity vulnerability in 8x8 Jitsi Meet, classified under Improper Authentication. CVSS score: 7.5/10. Published 2021-09-15.
How severe is CVE-2021-39215?: High severity. CVSS v3 base score is 7.5 out of 10.