KO
Product
koa
by koajs · last CVE Feb 26, 2026
5
CVEs
0
On KEV
7.5
Max CVSS
0
New 30D
Severity mix
Critical 0High 2Medium 3Low 0
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Add koa to your stack to get only the CVEs that touch what you run.

CVECVSSEPSSPublishedSummary · affected versions
CVE-2026-27959
7.5
0%
Feb 26
Koa has Host Header Injection via `ctx.hostname`
Affected: >= 3.0.0, < 3.1.2; < 2.16.4
CVE-2025-25200
7.5
1%
Feb 12
Koa has Inefficient Regular Expression Complexity
Affected: < 0.21.2; >= 1.0.0, < 1.7.1; >= 2.0.0-alpha.1, < 2.15.4; >= 3.0.0-alpha.0, < < 3.0.0-alpha.3
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