---
title: "Security digest: April 30, 2026"
url: https://erroneo.us/security/2026-04-30/
description: "April 30, 2026 vulnerability digest: 1 CISA KEV addition (WebPros); 4 critical advisories (PyPI, Go, Maven). What to patch and who can relax."
type: security-digest-day
section: "Security Digest"
date_published: 2026-04-30
date_modified: 2026-04-30
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: April 30, 2026

1 known exploited (cisa kev) addition and 4 critical advisories.

## Take stock

- Do you run any of these? WebPros cPanel & WHM and WP2 (WordPress Squared). They are being exploited in the wild (CISA KEV). Patch or mitigate if you do; CISA’s federal deadline is 2026-05-03.
- Go: 2 critical advisories ( github.com/gotenberg/gotenberg/v8 , github.com/go-pkgz/auth , github.com/go-pkgz/auth/v2 ). Check with govulncheck ./... .
- PyPI: 1 critical advisory ( sentry ). Check with pip-audit (or: pip show <package>) .
- Maven: 1 critical advisory ( com.shopizer:shopizer ). Check with mvn dependency:tree -Dincludes=<groupId>:<artifactId> .
- None of it touches your stack? Then there is nothing to do today. That is a result, not a failure to read carefully.

## Known exploited (CISA KEV)

- [CVE-2026-41940](https://erroneo.us/security/cve/CVE-2026-41940/index.md) WebPros cPanel & WHM and WP2 (WordPress Squared): WebPros cPanel & WHM and WP2 (WordPress Squared) Missing Authentication for Critical Function Vulnerability (CISA due 2026-05-03)

## Critical advisories

- [CVE-2026-42354](https://erroneo.us/security/cve/CVE-2026-42354/index.md) Sentry's improper authentication on SAML SSO process allows user identity linking — PyPI sentry >= 21.12.0, <= 26.4.0 → 26.4.1
- [CVE-2026-40281](https://erroneo.us/security/cve/CVE-2026-40281/index.md) Gotenberg has ExifTool stdin argument injection via metadata value newlines (bypass of key sanitization fix) — Go github.com/gotenberg/gotenberg/v8 <= 8.30.1 → 8.31.0
- [CVE-2026-42560](https://erroneo.us/security/cve/CVE-2026-42560/index.md) auth: Patreon provider assigns the same local user ID to every authenticated Patreon account, enabling cross‑user impersonation — Go github.com/go-pkgz/auth >= 1.18.0, <= 1.25.1 → 1.25.2; Go github.com/go-pkgz/auth/v2 >= 2.0.0, <= 2.1.1 → 2.1.2
- [CVE-2026-36767](https://erroneo.us/security/cve/CVE-2026-36767/index.md) Shopizer has a path traversal issue — Maven com.shopizer:shopizer <= 2.16.0 → no fix

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Source page: https://erroneo.us/security/2026-04-30/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt