CVE-2026-26080
A remote, anonymous attacker can exploit multiple vulnerabilities in HAProxy Enterprise, Community and ALOHA to conduct a Denial of Service attack.
CSIRTS triage
- What
- Multiple vulnerabilities allow Denial of Service.
- Who is affected
- A remote, anonymous attacker can exploit these vulnerabilities in HAProxy.
- Urgency
- Remediation is medium urgency as it can lead to service disruption.
- Action
- Update HAProxy to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.42% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 34% of all EPSS-scored CVEs.
Advisory coverage (3)
- medium[UPDATE] [medium] HAProxy Enterprise, Community and ALOHA (QUIC): Multiple vulnerabilities allow Denial of Ser…cert-bund · 2026-07-22
- lowCVE-2026-26080: HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because v…nvd · 2026-07-20
- lowCVE-2026-26080: HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because v…msrc · 2026-07-14
External references
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[](https://www.csirts.com/cve/CVE-2026-26080)