CVE-2026-66046
🗓️ 18 Aug 2026 14:10:05Reported by Debian Security Bug TrackerType 
debiancve🔗 security-tracker.debian.org👁 13 Views
| Reporter | Title | Published | Views | Family All 44 |
|---|---|---|---|---|
 | expat2 -- Inefficient Algorithmic Complexity | 18 Aug 202600:00 | – | freebsd |
 | CVE-2026-66046 | 18 Aug 202614:10 | – | attackerkb |
 | Amazon Linux 2023 : firefox (ALAS2023-2026-2105) | 31 Aug 202600:00 | – | nessus |
| Amazon Linux 2 : thunderbird, --advisory ALAS2-2026-3880 (ALAS-2026-3880) | 31 Aug 202600:00 | – | nessus |
| Amazon Linux 2 : firefox, --advisory ALAS2FIREFOX-2026-064 (ALASFIREFOX-2026-064) | 31 Aug 202600:00 | – | nessus |
| FreeBSD : expat2 -- Out-of-bounds Read (11ab3b16-a65d-11f1-a49c-00a0980083d7) | 2 Sep 202600:00 | – | nessus |
| FreeBSD : expat2 -- Inefficient Algorithmic Complexity (88917664-a65c-11f1-a49c-00a0980083d7) | 2 Sep 202600:00 | – | nessus |
| TencentOS Server 4: xmlrpc-c (TSSA-2026:0877) | 1 Sep 202600:00 | – | nessus |
| TencentOS Server 4: expat (TSSA-2026:0879) | 1 Sep 202600:00 | – | nessus |
| Linux Distros Unpatched Vulnerability : CVE-2026-66046 | 19 Aug 202600:00 | – | nessus |
10
| OS | OS Version | Architecture | Package | Package Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | expat | 2.5.0-1+deb12u3 | expat_2.5.0-1+deb12u3_all.deb |
| Debian | 13 | all | expat | 2.8.3-1~deb13u1 | expat_2.8.3-1~deb13u1_all.deb |
| Debian | 14 | all | expat | 2.8.4-1 | expat_2.8.4-1_all.deb |
| Debian | 999 | all | expat | 2.8.4-1 | expat_2.8.4-1_all.deb |
Data
Build on a solid foundation with Vulners data
We provide the essential building blocks for cybersecurity solutions with comprehensive, structured, and constantly updated vulnerability and exploits data
Api
Power your application with Vulners API
The Vulners REST API offers reliable, high-performance access to vulnerability intelligence, with 99.9% SLA uptime and CDN-backed data delivery for seamless global access
App
Assess and manage vulnerabilities with Vulners tools
Built on top of Vulners' database and SDK, end-user solutions give security professionals and developers lightweight and powerful tools for vulnerability remediation
18 Aug 2026 14:10Current
5.5Medium risk
Vulners AI Score5.5
CVSS 3.17.5
CVSS 48.7
EPSS0.00586
SSVC