CVE-2026-8368
6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects.
On a 3xx response, the redirect handler strips only Host and Cookie before issuing the follow-up request. Caller-supplied Authorization and Proxy-Authorization headers are sent unchanged to the redirect target, including across scheme, host, or port changes.
A redirect to an attacker controlled host therefore discloses the caller's credentials to that host.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| OALDERS | LWP::UserAgent | 0 < 6.83 | affected |
Weaknesses
- CWE-522: CWE-522 Insufficiently Protected Credentials
ADP Enrichment
CVE Program Container
Additional References
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/libwww-perl/libwww-perl/commit/9c4aeb6f2dd32f2b7eaf2d7827cade31ea6cb2c6.patch
- https://metacpan.org/release/OALDERS/libwww-perl-6.83/changes
- https://github.com/libwww-perl/libwww-perl/pull/512
- https://github.com/libwww-perl/libwww-perl/pull/284
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