CVE-2026-8368 (GCVE-0-2026-8368)

Vulnerability from cvelistv5 – Published: 2026-05-12 14:01 – Updated: 2026-05-19 17:16
VLAI
Title
LWP::UserAgent versions before 6.83 for Perl leak Authorization and Proxy-Authorization headers on cross-origin redirects
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.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 14:30 UTC
CWE
  • CWE-522 - Insufficiently Protected Credentials
Assigner
References
Impacted products
Vendor Product Version CPE status
OALDERS LWP::UserAgent Affected: 0 , < 6.83 (custom)
guessed Create a notification for this product.
Credits
Kai Aizen
Show details on NVD website
To clipboard 

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