CVE-2022-40023
HIGH
7.5
CVSS Score
Published: September 7, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 05:00 AM UTC
2 products affected across 2 vendorsDebian LinuxMako
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Severity
HIGH7.5
Exploit prediction
EPSS 2%
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 1.2.2
Affected range stops below 1.2.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (7)
ExploitThird Party Advisory
Source: [email protected]
https://github.com/sqlalchemy/mako/blob/c2f392e0be52dc67d1b9770ab8cce6a9c736d547/mako/ext/extract.py#L21Mailing ListThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2022/09/msg00026.htmlExploitThird Party Advisory
Source: [email protected]
https://pyup.io/posts/pyup-discovers-redos-vulnerabilities-in-top-python-packages/Source: af854a3a-2127-422b-91ae-364da2661108
https://lists.debian.org/debian-lts-announce/2025/12/msg00004.htmlCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-1333
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