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High severity7.5NVD Advisory· Published Sep 22, 2021· Updated Jun 17, 2026

CVE-2020-23478

CVE-2020-23478

Description

Leo Editor v6.2.1 was discovered to contain a regular expression denial of service (ReDoS) vulnerability in the component plugins/importers/dart.py.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
leoPyPI	< 6.3	6.3

Affected products

3

Leoeditor/Leo
cpe:2.3:a:leoeditor:leo:6.2.1:*:*:*:*:*:*:*
Leo Editor/Leo Editordescription
ghsa-coords
pkg:pypi/leo
Range: < 6.3

Patches

Vulnerability mechanics

References

6

github.com/leo-editor/leo-editor/issues/1597nvdExploitIssue TrackingPatchThird Party AdvisoryWEB
cwe.mitre.org/data/definitions/1333.htmlnvdThird Party Advisory
github.com/advisories/GHSA-x38q-xg2h-rxgxghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2020-23478ghsaADVISORY
github.com/leo-editor/leo-editor/commit/029833689060ee73f1bc1708cf4b182f0c66ec8eghsaWEB
github.com/pypa/advisory-database/tree/main/vulns/leo/PYSEC-2021-338.yamlghsaWEB

News mentions

0

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