CVE-2026-7017

HTTP::Tiny versions before 0.095 for Perl forward credential headers to cross-origin redirect targets. When the server returns a 3xx redirect, `_maybe_redirect` follows the `Location:` header and `_prepare_headers_and_cb` re-merges the caller's `headers` argument into the new request, without checking whether the redirect target shares an origin with the original URL. Caller-supplied `Authorization`, `Cookie` and `Proxy-Authorization` headers are therefore re-sent to whatever host the redirect names, across scheme, host or port boundaries, and including `https` to `http` downgrades that expose them in plaintext on the wire. The HTTP::Tiny POD note that "Authorization headers will not be included in a redirected request" applied only to the URL-userinfo Basic-auth path, not to headers passed explicitly by the caller.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/Perl-Toolchain-Gang/HTTP-Tiny/commit/84984ef3930ddd4afcf5eb83b40d3cee200739c3.patch
https://github.com/Perl-Toolchain-Gang/HTTP-Tiny/commit/8f32ca89e21c3ad0422adc698fa6ad17a193f55f.patch
https://github.com/Perl-Toolchain-Gang/HTTP-Tiny/commit/e7a03aedf2395158f2b0d3bad2df943349227bb3.patch
https://github.com/Perl-Toolchain-Gang/HTTP-Tiny/pull/36
https://metacpan.org/release/HAARG/HTTP-Tiny-0.095-TRIAL/changes
http://www.openwall.com/lists/oss-security/2026/07/07/13

Configurations

No configuration.

History

07 Jul 2026, 21:17

Type	Values Removed	Values Added
References		() http://www.openwall.com/lists/oss-security/2026/07/07/13 -

07 Jul 2026, 19:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-07 19:16

Updated : 2026-07-08 15:56

NVD link : CVE-2026-7017

Mitre link : CVE-2026-7017

CVE.ORG link : CVE-2026-7017

JSON object : View

Products Affected

No product.

CWE

CWE-522

Insufficiently Protected Credentials

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