LC
Product
Langchain Core
by Langchain · last CVE Apr 9, 2026
5
CVEs
0
On KEV
9.1
Max CVSS
0
New 30D
Severity mix
Critical 1High 2Medium 1Low 1
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-40087
5.3
0%
Apr 9
LangChain has incomplete f-string validation in prompt templates
Affected: before 0.3.84; 1.0.0 before 1.2.28
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