Multiple vulnerabilities in Apache Tomcat (July 15, 2026)

unknownCVE-2026-59084 CVE-2026-59083

Multiple vulnerabilities have been discovered in Apache Tomcat. They allow an attacker to cause a security policy bypass and an unspecified security issue by the vendor.

CSIRTS triage

vendor: Apache product: TomcatOther

What: Multiple vulnerabilities allow an attacker to cause a security policy bypass and an unspecified security issue by the vendor.
Who is affected: Deployments of Apache Tomcat are affected.
Urgency: Remediation is urgent due to the potential for security policy bypass.
Action: Apply patches as they become available.

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

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Details

Source: CERT-FR Avis de sécurité (FR · national-cert · site)
Severity: unknown
Published: 2026-07-15
Exploitation: Not in CISA KEV at last sync
Language: Machine-translated to English — verify against the original

Original advisory: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-0876/

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-2026-590840.51% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 40% of all scored CVEs.
Low exploitation riskCVE-2026-590830.37% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 30% of all scored CVEs.

Referenced CVEs

CVE	CSIRTS overview	External
CVE-2026-59084	coverage & exploitation status	NVD · CVE.org
CVE-2026-59083	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 Tomcat

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.

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