Rails security update 8.0.5.2 and 8.1.4.1 fixes 21 flaws, including a critical Active Storage file write bug (CVSS 9.8). Rails 8.0 support ends Nov 7.

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The post Rails 8.0.5.2 and 8.1.4.1 Fix 21 Security Flaws, Including Critical Active Storage File Write Bug appeared first on Daily CyberSecurity.

Details and PoC exploit code are out for critical libheif vulnerabilities GHSA-x8r2-mggj-j6wr and GHSA-2jg2-4ch7-h545. Upgrade to 1.23.3 now.

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The post Public PoC Exploit Disclosed for Critical libheif RCE Vulnerabilities appeared first on Daily CyberSecurity.

Two Discourse vulnerabilities, CVE-2026-55674 and CVE-2026-55420, enable cache poisoning XSS and server file reads. Patch to the fixed releases now.

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The post Discourse Vulnerabilities Let Attackers Hijack Pages for Every Visitor and Read Server Files appeared first on Daily CyberSecurity.

A critical Ghostscript vulnerability, CVE-2026-39919 (CVSS 9.8), allows remote code execution via crafted PDFs. Update Ghostscript to 10.08.0 now.

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The post Critical Ghostscript Vulnerability CVE-2026-39919 Turns Uploaded PDFs Into Remote Code Execution appeared first on Daily CyberSecurity.

A WordPress libheif RCE chain and its PoC are now public. The libheif vulnerability turns an HEIC upload into code execution. Patch to 1.23.3.

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The post Researchers Publish Full Details and PoC Exploit for a WordPress libheif RCE Chain appeared first on Daily CyberSecurity.