What is CVE-2026-8368?

CVE-2026-8368 is a medium-severity vulnerability in Oalders Lwp::useragent, classified under Insufficiently Protected Credentials. CVSS score: 6.5/10. Published 2026-05-12.

How severe is CVE-2026-8368?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Oalders Lwp::useragent

CVE-2026-8368

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-su…

EPSS: 0.000 (10.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Oalders Lwp::useragent — versions 0

Weakness classification (CWE)

CWE-522 — Insufficiently Protected Credentials

References

9b29abf9-4ab0-4765-b253-1875cd9b441e (patch)
9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes)
9b29abf9-4ab0-4765-b253-1875cd9b441e (issue-tracking)
9b29abf9-4ab0-4765-b253-1875cd9b441e (related)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-8368?: CVE-2026-8368 is a medium-severity vulnerability in Oalders Lwp::useragent, classified under Insufficiently Protected Credentials. CVSS score: 6.5/10. Published 2026-05-12.
How severe is CVE-2026-8368?: Medium severity. CVSS v3 base score is 6.5 out of 10.