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CVE-2021-22160

critical · 9.8

If Apache Pulsar is configured to authenticate clients using tokens based on JSON Web Tokens (JWT), the signature of the token is not validated if the algorithm of the presented token is set to "none". This allows an attacker to connect to Pulsar instances as any user (incl. admins).

9.8
CVSS
52.9%
EPSS (exploit prob.)
99th
EPSS percentile
2021-05-26
Published

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

Weaknesses

CWE-347

Affected products

VendorProductAffected versions
apachepulsar< 2.7.1

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2021-22160