CVE-2026-27803 - Vulnerability Details

Threat entity extracted from intelligence sources

Frequency
4
occurrences
First Seen
June 12, 2026
Last Seen
June 12, 2026

CVE-2026-27803 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 4 intelligence report mentions.

CVE-2026-27803 is a vulnerability tracked across 1 threat cluster and 4 intelligence report mentions on ThreatCluster. First observed June 12, 2026; most recent activity June 12, 2026.

Related Threat Clusters

Recent Intelligence Reports

  • Fedora 43 vaultwarden Critical DoS and Access Issues Fix 2026 — Linuxsecurity · June 12, 2026
  • Fedora 43 Vaultwarden — Linuxsecurity · June 12, 2026
  • Fedora 44 Vaultwarden Critical Security Fix from 2026 — Linuxsecurity · June 12, 2026
  • Fedora 44 vaultwarden — Linuxsecurity · June 12, 2026

Related Entities

Data Breach DDoS Denial of Service Fedora CVE-2025-58160 CVE-2026-25537 CVE-2026-25727 CVE-2026-26012 CVE-2026-27801 CVE-2026-27802 CVE-2026-27898 CWE-200 - Exposure of Sensitive Information

Frequently asked questions

What is CVE-2026-27803?

CVE-2026-27803 is a vulnerability tracked by ThreatCluster, appearing in 1 threat cluster built from 4 intelligence report mentions.

Is CVE-2026-27803 still active?

The most recent intelligence report mentioning CVE-2026-27803 on ThreatCluster is dated June 12, 2026.

What is CVE-2026-27803 associated with?

Across ThreatCluster reporting, CVE-2026-27803 most frequently co-occurs with Data Breach, DDoS, Denial of Service, Fedora, CVE-2025-58160, among 12 tracked related entities.

What are the latest developments involving CVE-2026-27803?

The most significant recent cluster is “Critical Security Flaws in Vaultwarden Affecting Fedora 43 and 44” (4 articles · Updated June 12, 2026). CVE-2026-27803 appears across 1 threat cluster in total, listed above with sources.

How much reporting does ThreatCluster have on CVE-2026-27803?

CVE-2026-27803 appears in 4 intelligence report mentions across 1 deduplicated threat cluster, aggregated from 17,000+ monitored sources.

CVSS v3.1 Breakdown