CVE-2021-37759

9.8 criticalEPSS 1.3%

Critical (9.8) in graylog graylog. EPSS 1.3% chance of exploitation in the next 30 days.

A Session ID leak in the DEBUG log file in Graylog before 4.1.2 allows attackers to escalate privileges (to the access level of the leaked session ID).

Severity

CVSS 3.1

9.8 critical

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

EPSS: 1.3% chance of exploitation in the next 30 days; higher than 70% of CVEs (scores of 2026-10-31)
CWE: CWE-532
Published: 2021-07-31
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

graylog:graylog

References

https://www.graylog.org/post/announcing-graylog-v4-1-2
https://www.graylog.org/post/announcing-graylog-v4-1-2

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