CVSS v3
7.5
HIGH
EPSS Score
2.2 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Sqlalchemy mako before 1.2.2 is vulnerable to Regular expression Denial of Service when using the Lexer class to parse. This also affects babelplugin and linguaplugin.
Technical details
- Published
- 2022-09-07
Frequently asked questions
What is CVE-2022-40023?
Sqlalchemy mako before 1.2.2 is vulnerable to Regular expression Denial of Service when using the Lexer class to parse. This also affects babelplugin and linguaplugin.
Is CVE-2022-40023 actively exploited?
Active exploitation of CVE-2022-40023 has not been confirmed. Its EPSS score was 2.2% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2022-40023?
CVE-2022-40023 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2022-40023 affecting your environment?
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