Help Net Security newsletters: Daily and weekly news, cybersecurity jobs, open source projects, breaking news – subscribe here!

Please turn on your JavaScript for this page to function normally.
Linux
KDE Linux security audit cuts kernel modules and unused packages

KDE Linux, the in-progress operating system from the KDE community, removed several kernel modules and software packages after a security audit of the components shipped with …

AI
DNS-AID lets AI agents find and verify each other through DNS

AI agents run across many platforms, and each one needs a way to locate and confirm the identity of the others it works with. The Linux Foundation’s DNS-AID project …

Linux
Canonical ships Ubuntu Core 26 with 15 years of security maintenance

Operators of industrial sensors, edge AI controllers, and connected medical equipment now have a refreshed long-term Linux option for fleets that must stay patched for more …

code
AI is drowning software maintainers in junk security reports

AI-assisted vulnerability research has exploded, unleashing a firehose of low-quality reports on overworked software maintainers who are wasting hours sifting through noise …

Debian
Debian 13.5 point release lands with security fixes, bug patches

Debian 13.5 is the fifth point release for the stable distribution “trixie.” The update folds in roughly 100 Debian Security Advisories and corrections for more …

Rocky Linux
Rocky Linux launches opt-in security repository for urgent fixes

Rocky Linux has introduced a Security Repository that allows the distribution to ship urgent security fixes ahead of upstream Enterprise Linux when public exploit code exists …

Linux
Fragnesia: New Linux kernel LPE bug was spawned by Dirty Frag patch (CVE-2026-46300)

Researchers have found and disclosed yet another local privilege escalation (LPE) vulnerability in the Linux kernel: CVE-2026-46300, aka “Fragnesia”. The flaw is …

Fedora Hummingbird
Fedora Hummingbird brings the container security model to a Linux host OS

Container image security pipelines have spent the past several years pushing toward minimal footprints, hermetic builds, and continuous CVE remediation. The Fedora Project is …

Linux
Linux developers weigh emergency “killswitch” for vulnerable kernel functions

Linux kernel developers are reviewing a proposal for an emergency risk mitigation mechanism (“Killswitch”) that would allow administrators to disable vulnerable …

Rustinel
Rustinel: Open-source endpoint detection for Windows and Linux

Open-source endpoint detection has long been split between Windows-focused tools built around Sysmon and Linux tools built around eBPF or auditd. Defenders running mixed …

Linux
Dirty Frag: Unpatched Linux vulnerability delivers root access

A week after Copy Fail, another Linux local privilege escalation vulnerability dubbed “Dirty Frag” has been revealed, along with a PoC exploit. What is Dirty Frag …

Linux
Nine-year-old Linux kernel flaw enables reliable local privilege escalation (CVE-2026-31431)

Security researchers at Theori have disclosed a high-severity local privilege escalation (LPE) vulnerability (CVE-2026-31431) in the Linux kernel. The flaw, nicknamed …

Don't miss

Cybersecurity news
Daily newsletter sent Monday-Friday
Weekly newsletter sent on Mondays
Editor's choice newsletter sent twice a month
Periodical newsletter released when there is breaking news
Weekly newsletter listing new cybersecurity job positions
Monthly newsletter focusing on open source cybersecurity tools