---
title: "Security digest: May 1, 2026"
url: https://erroneo.us/security/2026-05-01/
description: "May 1, 2026 vulnerability digest: 1 CISA KEV addition (Linux); 2 critical advisories (Maven). What to patch and who can relax."
type: security-digest-day
section: "Security Digest"
date_published: 2026-05-01
date_modified: 2026-05-01
publisher: erroneo.us
author: erroneo.us Security Desk
license: All rights reserved. Quote with attribution and a link.
---

# Security digest: May 1, 2026

1 known exploited (cisa kev) addition and 2 critical advisories.

## Take stock

- Do you run any of these? Linux Kernel. They are being exploited in the wild (CISA KEV). Patch or mitigate if you do; CISA’s federal deadline is 2026-05-15.
- Maven: 2 critical advisories ( org.apache.mina:mina-core ). 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-2026-31431](https://erroneo.us/security/cve/CVE-2026-31431/index.md) Linux Kernel: Linux Kernel Incorrect Resource Transfer Between Spheres Vulnerability (CISA due 2026-05-15)

## Critical advisories

- [CVE-2026-42779](https://erroneo.us/security/cve/CVE-2026-42779/index.md) Apache MINA vulnerable to Deserialization of Untrusted Data (CVE-2026-41635 Incomplete Fix) — Maven org.apache.mina:mina-core >= 2.1.0, < 2.1.12 → 2.1.12; Maven org.apache.mina:mina-core >= 2.2.0, < 2.2.7 → 2.2.7
- [CVE-2026-42778](https://erroneo.us/security/cve/CVE-2026-42778/index.md) Apache MINA vulnerable to Deserialization of Untrusted Data (CVE-2026-41409 Incomplete Fix) — Maven org.apache.mina:mina-core >= 2.1.0, < 2.1.12 → 2.1.12; Maven org.apache.mina:mina-core >= 2.2.0, < 2.2.7 → 2.2.7

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Source page: https://erroneo.us/security/2026-05-01/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt