CVE-2022-27780

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.

CVSS 3.1

7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

EPSS

2.5% chance of exploitation in the next 30 days; higher than 84% of CVEs (scores of 2026-10-25)

CWEs

CWE-918, CWE-177

Published

2022-06-02

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• haxx:curl
• netapp:clustered_data_ontap
• netapp:h300s_firmware
• netapp:h410s_firmware
• netapp:h500s_firmware
• netapp:h700s_firmware
• netapp:hci_bootstrap_os
• netapp:solidfire\,_enterprise_sds_\&_hci_storage_node
• netapp:solidfire_\&_hci_management_node
• splunk:universal_forwarder

References

• https://hackerone.com/reports/1553841
• https://security.gentoo.org/glsa/202212-01
• https://security.netapp.com/advisory/ntap-20220609-0009/
• https://hackerone.com/reports/1553841
• https://security.gentoo.org/glsa/202212-01

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