CVE-2026-42560

critical

Published 2026-05-09 · Modified 2026-05-13

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CVSS v3

9.1

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

CVSS v4 NEW

—

not yet in upstream

VIR risk

9.1

Description

auth: Patreon provider assigns the same local user ID to every authenticated Patreon account, enabling cross‑user impersonation

Predictions

Exploit likelihood

94%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/go-pkgz/auth	`>=1.18.0,<1.25.2`	`1.25.2`
Go	github.com/go-pkgz/auth/v2	`>=2.0.0,<2.1.2`	`2.1.2`
GO	github.com/go-pkgz/auth/v2	`>= 2.0.0, <= 2.1.1`	`2.1.2`
GO	github.com/go-pkgz/auth	`>= 1.18.0, <= 1.25.1`	`1.25.2`

References

CWEs

CWE-287

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.