[UPDATE] [high] Apache Kafka: Vulnerability allows information disclosure

highCVE-2026-35554

A remote, anonymous attacker can exploit a vulnerability in Apache Kafka to disclose information.

CSIRTS triage

vendor: Apache product: Kafka Information disclosure

What: A vulnerability allows information disclosure.
Who is affected: A remote, anonymous attacker can exploit this vulnerability in Apache Kafka.
Urgency: Remediation is high urgency as it can lead to sensitive information being disclosed.
Action: Update Apache Kafka 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: 2026-07-24
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-2026-0996

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-2026-355540.33% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 25% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-35554	coverage & exploitation status	NVD · CVE.org

Same CVEs, other sources

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

Recent advisories for Apache Kafka

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.

mediumCVE-2026-49098: Improper Input Validation, Improper Neutralization of Special Elements in Output Used by a Dow…nvd · 2026-07-06