[UPDATE] [high] Eclipse Jetty: Multiple vulnerabilities allow Denial of Service

highpublic exploitCVE-2023-36478 CVE-2023-44487

A remote anonymous attacker can exploit multiple vulnerabilities in Eclipse Jetty to conduct a Denial of Service attack.

CSIRTS triage

vendor: Eclipse product: Jetty Denial of service

What: Multiple vulnerabilities in Eclipse Jetty allow for denial of service attacks.
Who is affected: Remote anonymous attackers can exploit these vulnerabilities in Eclipse Jetty.
Urgency: Remediation is urgent due to the high severity and active exploitation.
Action: Update Eclipse Jetty to the latest version.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source: CERT-Bund (BSI) Security Advisories (DE · national-cert · site)
Severity: high
Published: 2026-07-06
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2023-2627

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.

Moderate exploitation riskCVE-2023-364783.8% 30-day exploitation probability. Patch within normal cadence, watch for KEV listing. Riskier than 89% of all EPSS-scored CVEs.
Exploitation confirmedCVE-2023-44487Already exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 99.9% of all EPSS-scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2023-36478	coverage & exploitation status	NVD · CVE.org
CVE-2023-44487	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

unknownexploitedMultiple vulnerabilities in IBM products (August 21, 2026)cert-fr-avis
highexploited[UPDATE] [high] http/2 implementations: Vulnerability allows denial of servicecert-bund
unknownexploitedMultiple vulnerabilities in IBM products (August 14, 2026)cert-fr-avis
criticalexploitedGitLab Security Release: 16.5.1, 16.4.2, 16.3.6gitlab
criticalexploitedGitLab Security Release: 16.5.1, 16.4.2, 16.3.6gitlab
unknownexploitedJenkins Security Advisory 2023-10-18jenkins
criticalexploitedCVE-2023-44487: HTTP/2 Rapid Reset Attack Vulnerabilitycisa-kev

Recent advisories for Eclipse Jetty

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] Eclipse Jetty: Multiple vulnerabilitiescert-bund · 2026-08-18
medium[UPDATE] [medium] Eclipse Jetty: Vulnerability allows data manipulationcert-bund · 2026-08-14
low[UPDATE] [low] Eclipse Jetty: Vulnerability allows bypassing of security measurescert-bund · 2026-08-14
medium[UPDATE] [medium] Eclipse Jetty: Vulnerability allows Denial of Servicecert-bund · 2026-08-10
criticalCVE-2026-10050: In Eclipse Jetty, the Digest authentication server-side component uses ISO-8859-1 to encode th…nvd · 2026-08-04
highGHSA-9299-c6m4-mjhc: Eclipse Jetty: DoS attack triggering OutOfMemory with 100-Continue requestsghsa · 2026-07-22