Amazon Linux 2027 Preview Security Advisory: ALAS2027-2026-199
Advisory Release Date: 2026-10-12 09:00 Pacific
Advisory Updated Date: 2026-10-20 15:48 Pacific
Package updates are available for Amazon Linux 2027 that fix the following vulnerabilities:
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.
Affected Packages:
perl-HTTP-Tiny
Issue Correction:
Run dnf update perl-HTTP-Tiny or dnf update --advisory ALAS2027-2026-199 to update your system.
noarch:
perl-HTTP-Tiny-0.096-528.amzn2027.0.1.noarch
perl-HTTP-Tiny-tests-0.096-528.amzn2027.0.1.noarch
src:
perl-HTTP-Tiny-0.096-528.amzn2027.0.1.src