HTTP::Tiny versions before 0.095 for Perl forward credential headers to cross-origin redirect targets

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Summary

CVECVE-2026-7017
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-07 19:16:55 UTC
Updated2026-07-08 15:56:29 UTC
DescriptionHTTP::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.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from ADP

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

Problem Types: CWE-522 | CWE-522 CWE-522 Insufficiently Protected Credentials

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA HAARG HTTPTiny affected 0.095 custom Not specified

References

ReferenceSourceLinkTags
www.openwall.com/lists/oss-security/2026/07/07/13 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
metacpan.org/release/HAARG/HTTP-Tiny-0.095-TRIAL/changes 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
github.com/Perl-Toolchain-Gang/HTTP-Tiny/commit/8f32ca89e21c3ad0422adc69... 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com
github.com/Perl-Toolchain-Gang/HTTP-Tiny/commit/e7a03aedf2395158f2b0d3ba... 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com
github.com/Perl-Toolchain-Gang/HTTP-Tiny/commit/84984ef3930ddd4afcf5eb83... 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com
github.com/Perl-Toolchain-Gang/HTTP-Tiny/pull/36 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2026-04-25T00:00:00.000ZIssue discovered.
CNA2026-06-03T00:00:00.000ZVersion 0.095-TRIAL released with fix.

Solutions

CNA: Upgrade to HTTP-Tiny 0.095-TRIAL or later.

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