cvedb.io
CVE-2022-27780
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2022-06-02T14:15:44.267 · Last modified 2026-06-17T04:37:29.713

Summary

The curl URL parser wrongly accepts percent-encoded URL separators like '/'when decoding the host name part of a URL, making it a *different* URL usingthe wrong host name when it is later retrieved.For example, a URL like `http://example.com%2F127.0.0.1/`, would be allowed bythe parser and get transposed into `http://example.com/127.0.0.1/`. This flawcan be used to circumvent filters, checks and more.

Affected products

haxx — curl

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.