🟡 Medium ⏱ 10–30 min Last verified: 18 July 2026 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read • Source: Ubuntu Security Notice USN-8202-1 Related CVEs: CVE-2026-39956 CVE-2026-33947 CVE-2026-39979 CVE-2026-33948 CVE-2026-40164 CVE-2026-32316 CVE-2025-48060 CVE-2024-23337 +1 more Upstream summary: It was discovered that jq did not correctly handle certain string concatenations. An attacker could […]
🟠 High ⏱ 15–60 min Last verified: 18 July 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7983-1 Related CVEs: CVE-2025-64329 CVE-2024-25621 CVE-2024-40635 CVE-2023-25153 CVE-2023-25173 CVE-2022-23471 CVE-2022-24769 CVE-2022-24778 +7 more Upstream summary: David Leadbeater discovered that containerd incorrectly set certain directory path permissions. An attacker could possibly […]
Let’s Encrypt provides free, automated SSL/TLS certificates. With Certbot, you can obtain and auto-renew certificates for your Nginx-hosted domains in minutes, enabling HTTPS with no cost. This guide walks through the full process on Ubuntu 26.04 LTS. Tested and valid on: Ubuntu 26.04 LTS Prerequisites Ubuntu 26.04 LTS server with Nginx installed and running A […]
🟡 Medium ⏱ 5–30 min Last verified: 17 July 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
A reverse proxy sits in front of one or more backend application servers and forwards client requests to them. Nginx excels as a reverse proxy — it handles SSL termination, load balancing, caching, and rate limiting while passing traffic to Node.js, Python, Java, or other apps. This guide configures Nginx as a reverse proxy on […]
🟠 High ⏱ 15–60 min Last verified: 17 July 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-8259-1 Related CVEs: CVE-2026-27622 CVE-2026-34380 CVE-2026-34588 CVE-2021-3941 CVE-2021-3933 CVE-2021-20296 CVE-2021-23215 CVE-2021-26260 +12 more Upstream summary: Quang Luong discovered that OpenEXR incorrectly handled sample count accumulation when processing deep scan line […]
🟢 Low ⏱ 5–15 min Last verified: 17 July 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7981-1 Related CVEs: CVE-2026-22251 CVE-2026-22250 Upstream summary: It was discovered that wlc did not correctly handle SSL verification. An attacker could possibly use this issue to access sensitive resources. (CVE-2026-22250) […]
🟠 High ⏱ 15–60 min Last verified: 17 July 2026 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7826-2 Related CVEs: CVE-2025-9640 CVE-2025-10230 https://launchpad.net/bugs/2039031 CVE-2023-4091 CVE-2023-4154 CVE-2023-42669 CVE-2023-42670 CVE-2022-2127 +12 more Upstream summary: USN-7826-1 fixed vulnerabilities in Samba. This update provides the corresponding update for Ubuntu 14.04 LTS, […]
🟠 High ⏱ 15–60 min Last verified: 17 July 2026 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read • Source: Ubuntu Security Notice USN-7912-2 Related CVEs: CVE-2025-58436 https://launchpad.net/bugs/2133207 CVE-2025-61915 CVE-2025-58060 CVE-2025-58364 CVE-2024-47175 https://launchpad.net/bugs/2070315 CVE-2024-35235 +12 more Upstream summary: USN-7912-1 fixed vulnerabilities in CUPS. This update provides the corresponding update for Ubuntu 16.04 LTS, […]
🔴 Critical ⏱ 5–30 min Last verified: 17 July 2026 Affected versions: Ubuntu 26.04 LTS 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors […]
