ReDoS Vulnerability in Pygments Affects Smithy Lexer
CVE-2022-40896

5.5MEDIUM

Key Information:

Vendor

Pygments

Status
Pygments
Vendor
CVE Published:
19 July 2023

What is CVE-2022-40896?

A ReDoS (Regular Expression Denial of Service) vulnerability has been identified within the SmithyLexer component of Pygments, potentially allowing attackers to exploit overly complex regex patterns. This issue could be triggered by specific inputs, leading to significant delays in processing time and denial of service. The vulnerability affects Pygments versions up to 2.15.0, necessitating immediate action to evaluate and mitigate risks associated with this component.

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References

https://pypi.org/project/Pygments/
https://github.com/pygments/pygments/blob/master/pygments...
https://pyup.io/posts/pyup-discovers-redos-vulnerabilitie...

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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