CVE-2026-54428
A remote, anonymous attacker can exploit multiple vulnerabilities in Apache HttpComponents Core to perform a Denial of Service attack.
CSIRTS triage
- What
- A remote, anonymous attacker can exploit multiple vulnerabilities in Apache HttpComponents Core to perform a Denial of Service attack.
- Who is affected
- Deployments of Apache HttpComponents Core are affected.
- Urgency
- Remediation is medium urgency as the vulnerabilities can lead to service disruption.
- Action
- Update to the latest version of Apache HttpComponents Core.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.87% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 56% of all EPSS-scored CVEs.
Advisory coverage (3)
- medium[NEW] [medium] Apache HttpComponents Core: Multiple vulnerabilities allow Denial of Servicecert-bund · 2026-08-14
- highGHSA-v3jc-474w-2wm6: Apache HttpComponents Core: HPackDecoder Unlimited Header List Size Before SETTINGS ACKghsa · 2026-07-01
- highCVE-2026-54428: Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache Htt…nvd · 2026-07-01
External references
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[](https://www.csirts.com/cve/CVE-2026-54428)