High severity7.5NVD Advisory· Published Jun 2, 2022· Updated Jun 17, 2026
CVE-2022-27780
CVE-2022-27780
Description
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.
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Affected products
3Patches
Vulnerability mechanics
References
3- hackerone.com/reports/1553841nvdExploitThird Party Advisory
- security.gentoo.org/glsa/202212-01nvdThird Party Advisory
- security.netapp.com/advisory/ntap-20220609-0009/nvdThird Party Advisory
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