[NEU] [mittel] Apache HttpComponents: Schwachstelle ermöglicht Denial of Service

mediumCVE-2026-64607

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Apache HttpComponents ausnutzen, um einen Denial of Service Angriff durchzuführen.

Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: medium
Published: 2026-08-03
Exploitation: Not in CISA KEV at last sync

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-2615

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Low exploitation riskCVE-2026-646070.24% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 15% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-64607	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

mediumCVE-2026-64607: HttpClient based on the classic i/o model fails to correctly release the underlying connection…nvd

Recent advisories for Apache HttpComponents

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

medium[NEW] [medium] Apache HttpComponents Core: Multiple vulnerabilities allow Denial of Servicecert-bund · 2026-08-03
medium[UPDATE] [mittel] Apache HttpComponents: Schwachstelle ermöglicht Denial of Servicecert-bund · 2026-08-03
medium[UPDATE] [mittel] Apache HttpComponents: Schwachstelle ermöglicht Umgehen von Sicherheitsvorkehrungencert-bund · 2026-08-03
highCVE-2026-54428: Allocation of resources without limits or throttling in the HTTP/2 HPACK decoder in Apache Htt…nvd · 2026-07-01
highCVE-2026-54399: Uncontrolled Resource Consumption vulnerability in the HTTP/1.1 message parser in Apache HttpC…nvd · 2026-07-01