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Highest advisory severityHigh 1 vendor · 1 advisory

CVE-2026-15076

CVE-2026-15076: 1 tracked advisory record across Red Hat. Compare source-reported impact, fixes and remediation.

Compare the source-linked records below. Ratings and product/version details belong to each advisory; they are not a single CVE-wide score or proof that every listed product is affected. How VulniPulse collects and checks evidence.

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Vendor advisory comparison

Red Hat

1 advisory
  • Advisory severityHigh7.5

    High [CVE-2026-15076] Information disclosure via improper cookie domain validation

    CVE-2026-15076Source published Source updated

    In versions up to and including 4.5.29 (4.x branch) and 5.1.4 (5.x branch), the WebClientSession component of Eclipse Vert.x Web Client does not validate that the Domain attribute of a Set-Cookie response header matches the originating server's domain, in violation of RFC 6265 section 5.3. An attacker who controls any server that the victim application contacts can inject a cookie scoped to an arbitrary third-party domain; because the session store performs no cross-domain ownership check, it stores and later transmits that cookie to the targeted domain. When the victim application subsequently sends a request to the targeted domain using the same WebClientSession, it presents the attacker-injected cookie, causing the receiving service to process the request under the attacker's account.…

    Affected products in this advisory
    • Red Hat build of Apache Camel 4.18.3 for Spring Boot 3.5.16
    • Red Hat Build of Apache Camel 4.18 for Quarkus 3.33
    • Red Hat build of Quarkus 3.27.4.SP3
    • Red Hat build of Quarkus 3.33.2.SP3

    10 more entries in the full advisory.

    Source-reported affected versions
    • 4.5.29
    • 5.1.4
    Source-reported fixed versions
    • vertx-web-client
    • vertx-web-common
    • devspaces/server-rhel9:1787757597
    • RHSA-2026:54622

    5 more entries in the full advisory.

    Mitigation guidance
    • Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
    Full advisory and evidenceOpen source bulletin

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