Payload: Untrusted redirect URL parameter exploit

### Impact Under certain conditions, an attacker can craft a redirect link that sends a guest user to an untrusted destination after authenticating. ### Patches Users should upgrade Payload packages to `>= 3.88.0` or `>= 4.0.0-canary.27`. ### Workarounds Upgrading is recommended. Until then, remove user-controlled redirect values from authentication flows or restrict them to known local paths.

Source published

6 Oct 2026 16:09:13 UTC

Source modified

6 Oct 2026 16:15:05 UTC

Observed here

24 Oct 2026 13:17:17 UTC

Source terms

GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Publisher rating · MODERATE