Linuxsecurity Critical Vulnerabilities in Python 2.7 Affecting Multiple Ubuntu Releases
Article Content
- •Critical vulnerabilities in Python 2.7 could lead to denial of service and header injection.
- •Affected Ubuntu versions include 14.04, 16.04, 18.04, 20.04, and 22.04 LTS.
- •Users must update to the latest package versions to mitigate the risks.
On March 19, 2026, Ubuntu released USN-8018-3 to address vulnerabilities in Python 2.7, which could lead to denial of service and header injection attacks. The vulnerabilities were originally reported in Python 3 and included CVE-2025-12084, CVE-2025-15282, CVE-2026-0672, and CVE-2026-0865. Affected systems include various Ubuntu LTS versions from 14.04 to 22.04. The vulnerabilities were discovered by multiple researchers, including Denis Ledoux and Jacob Walls. Attackers could exploit these vulnerabilities by sending malicious inputs, leading to potential resource exhaustion and arbitrary command injection. Users are advised to update their systems to the latest package versions to mitigate these risks. The updates are available through Ubuntu Pro. The vulnerabilities were published between December 2025 and January 2026, with the advisory released on the same day as the patch.
Ask AI about this cluster
Answers cite the sources they use
Timeline
More articles in this cluster (2)
Following this threat?
Track Ubuntu and CVE-2025-11468 in your own feed — you're alerted when they show up in new reporting, leak sites or exploitation.
Free account · no card needed
Continue Reading
CISA Mandates Urgent Patching of Five Critical Flaws Exploited by Flax Typhoon The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has ordered federal agencies to patch five critical vulnerabilities by October 11, 2026, following exploitation by the China-linked hacking group Flax Typhoon. The vulnerabilities, added to CISA's Known Exploited Vulnerabilities (KEV) catalog, include… 
Critical Zero-Day Exploit Found in BeyondTrust Remote Support BeyondTrust disclosed a critical vulnerability, CVE-2026-102764, in its Remote Support product, exploited by the suspected China-linked group ARMORY CASTLE since August 2026. This flaw, with a CVSS score of 9.3, allows attackers to perform arbitrary file uploads and gain host-level control without requiring…