CVE-2026-21876
🗓️ 08 Jan 2026 13:55:37Reported by Debian Security Bug TrackerType 
debiancve🔗 security-tracker.debian.org👁 11 Views
| Reporter | Title | Published | Views | Family All 45 |
|---|---|---|---|---|
 | Exploit for CVE-2026-21876 | 7 Jan 202614:48 | – | githubexploit |
 | CVE-2026-4048 | 20 Apr 202613:36 | – | attackerkb |
| CVE-2026-3518 | 20 Apr 202613:29 | – | attackerkb |
| CVE-2026-3519 | 20 Apr 202613:32 | – | attackerkb |
| CVE-2026-3517 | 20 Apr 202613:22 | – | attackerkb |
 | Amazon Linux 2023 : mod_security_crs (ALAS2023-2026-1399) | 5 Feb 202600:00 | – | nessus |
| Debian dla-4488 : modsecurity-crs - security update | 22 Feb 202600:00 | – | nessus |
| Debian dsa-6105 : modsecurity-crs - security update | 21 Jan 202600:00 | – | nessus |
| Linux Distros Unpatched Vulnerability : CVE-2026-21876 | 8 Jan 202600:00 | – | nessus |
 | Important: mod_security_crs | 5 Feb 202600:00 | – | amazon |
10
| OS | OS Version | Architecture | Package | Package Version | Filename |
|---|---|---|---|---|---|
| Debian | 11 | all | modsecurity-crs | 3.3.4-1~deb11u2 | modsecurity-crs_3.3.4-1~deb11u2_all.deb |
| Debian | 12 | all | modsecurity-crs | 3.3.4-1+deb12u1 | modsecurity-crs_3.3.4-1+deb12u1_all.deb |
| Debian | 13 | all | modsecurity-crs | 3.3.7-1+deb13u1 | modsecurity-crs_3.3.7-1+deb13u1_all.deb |
| Debian | 14 | all | modsecurity-crs | 3.3.8-1 | modsecurity-crs_3.3.8-1_all.deb |
| Debian | 999 | all | modsecurity-crs | 3.3.8-1 | modsecurity-crs_3.3.8-1_all.deb |
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08 Jan 2026 13:55Current
5.6Medium risk
Vulners AI Score5.6
CVSS 3.15.3 - 9.3
EPSS0.13346
SSVC