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CVE-2026-7168

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CVE-2026-7168

Published: May 13, 2026

Modified: May 13, 2026

PUBLISHED

Description

Successfully using libcurl to do a transfer over a specific HTTP proxy (`proxyA`) with **Digest** authentication and then changing the proxy host to a second one (`proxyB`) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the `Proxy-Authorization:` header field meant for `proxyA`, to `proxyB`.

VendorProductVersions

curl

curl

affected
8.19.0 - <= 8.19.0
affected
8.18.0 - <= 8.18.0
affected
8.17.0 - <= 8.17.0
affected
8.16.0 - <= 8.16.0
affected
8.15.0 - <= 8.15.0

+160 more versions

References

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