CVE-2026-54696

Ruby JSON is a JSON implementation for Ruby. Versions 2.9.0 through 2.19.8 are vulnerable to heap buffer overflow when the JSON generator is provided with an oversized streamed object. When streaming to an IO JSON.dumpobj, io and JSON::Stategenerateobj, io can write past the internal JSON generat...

CVE-2026-54696 Ruby JSON: JSON generator heap buffer overflow when streaming to an IO

Ruby JSON is a JSON implementation for Ruby. Versions 2.9.0 through 2.19.8 are vulnerable to heap buffer overflow when the JSON generator is provided with an oversized streamed object. When streaming to an IO JSON.dumpobj, io and JSON::Stategenerateobj, io can write past the internal JSON generat...

CVE-2026-54696

CVE-2026-54696 affects the Ruby JSON gem, specifically versions 2.9.0 through 2.19.8. The issue is a heap buffer overflow that occurs when the JSON generator handles an oversized streamed object written via JSON.dump(obj, io) or JSON::State#generate(obj, io). If a streamed object contains an atta...

CVE-2026-54696 Ruby JSON: JSON generator heap buffer overflow when streaming to an IO

Ruby JSON is a JSON implementation for Ruby. Versions 2.9.0 through 2.19.8 are vulnerable to heap buffer overflow when the JSON generator is provided with an oversized streamed object. When streaming to an IO JSON.dumpobj, io and JSON::Stategenerateobj, io can write past the internal JSON generat...

CVE-2026-54696

Ruby JSON is a JSON implementation for Ruby. Versions 2.9.0 through 2.19.8 are vulnerable to heap buffer overflow when the JSON generator is provided with an oversized streamed object. When streaming to an IO JSON.dumpobj, io and JSON::Stategenerateobj, io can write past the internal JSON generat...

CVE-2026-44025 vulnerabilities

Vulnerabilities for packages: kube-logging-operator, ruby3.4-fluentd-kubernetes-daemonset, kube-fluentd-operator, ruby3.2-fluentd-kubernetes-daemonset, ruby4.0-fluentd-kubernetes-daemonset, ruby3.3-fluentd-kubernetes-daemonset...

CVE-2026-44160 vulnerabilities

Vulnerabilities for packages: kube-logging-operator, ruby3.4-fluentd-kubernetes-daemonset, kube-fluentd-operator, ruby3.2-fluentd-kubernetes-daemonset, ruby4.0-fluentd-kubernetes-daemonset, ruby3.3-fluentd-kubernetes-daemonset...

CVE-2026-44161 vulnerabilities

Vulnerabilities for packages: kube-logging-operator, ruby3.4-fluentd-kubernetes-daemonset, kube-fluentd-operator, ruby3.2-fluentd-kubernetes-daemonset, ruby4.0-fluentd-kubernetes-daemonset, ruby3.3-fluentd-kubernetes-daemonset...

GHSA-PR7J-96CJ-549H vulnerabilities

Vulnerabilities for packages: kube-logging-operator, ruby3.4-fluentd-kubernetes-daemonset, kube-fluentd-operator, ruby3.2-fluentd-kubernetes-daemonset, ruby4.0-fluentd-kubernetes-daemonset, ruby3.3-fluentd-kubernetes-daemonset...

CVE-2026-44024 vulnerabilities

Vulnerabilities for packages: kube-logging-operator, ruby3.4-fluentd-kubernetes-daemonset, kube-fluentd-operator, ruby3.2-fluentd-kubernetes-daemonset, ruby4.0-fluentd-kubernetes-daemonset, ruby3.3-fluentd-kubernetes-daemonset...

GHSA-72F5-RR8C-R6GR vulnerabilities

Vulnerabilities for packages: kube-logging-operator, ruby3.4-fluentd-kubernetes-daemonset, kube-fluentd-operator, ruby3.2-fluentd-kubernetes-daemonset, ruby4.0-fluentd-kubernetes-daemonset, ruby3.3-fluentd-kubernetes-daemonset...

CVE-2026-44024 vulnerabilities

Vulnerabilities for packages: ruby3.4-fluentd-kubernetes-daemonset, kube-fluentd-operator, kube-logging-operator, ruby3.3-fluentd-kubernetes-daemonset, ruby4.0-fluentd-kubernetes-daemonset, ruby3.2-fluentd-kubernetes-daemonset...

CVE-2026-44160 vulnerabilities

Vulnerabilities for packages: ruby3.4-fluentd-kubernetes-daemonset, kube-fluentd-operator, kube-logging-operator, ruby3.3-fluentd-kubernetes-daemonset, ruby4.0-fluentd-kubernetes-daemonset, ruby3.2-fluentd-kubernetes-daemonset...

GHSA-J9CW-HWQF-85W7 vulnerabilities

Vulnerabilities for packages: ruby3.4-fluentd-kubernetes-daemonset, kube-fluentd-operator, kube-logging-operator, ruby3.3-fluentd-kubernetes-daemonset, ruby4.0-fluentd-kubernetes-daemonset, ruby3.2-fluentd-kubernetes-daemonset...

GHSA-PR7J-96CJ-549H vulnerabilities

Vulnerabilities for packages: ruby3.4-fluentd-kubernetes-daemonset, kube-fluentd-operator, kube-logging-operator, ruby3.3-fluentd-kubernetes-daemonset, ruby4.0-fluentd-kubernetes-daemonset, ruby3.2-fluentd-kubernetes-daemonset...

ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses

A flaw was found in Net::IMAP, a Ruby library implementing the Internet Message Access Protocol IMAP client functionality. A hostile server can exploit a quadratic time complexity issue in the Net::IMAP::ResponseReader when processing large responses containing numerous string literals. This can...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: ruby3.3: ruby3.3-3.3.10-23.2.hum1 aarch64, x8664 ruby3.3-bundled-gems-3.3.10-23.2.hum1 aarch64, x8664 ruby3.3-default-gems-3.3.10-23.2.hum1 noarch ruby3.3-devel-3.3.10-23.2.hum1 aarch64, x8664...

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...

ruby: net-imap: Net::IMAP: Denial of Service via crafted IMAP responses

A flaw was found in Net::IMAP, a Ruby library implementing the Internet Message Access Protocol IMAP client functionality. A hostile server can exploit a quadratic time complexity issue in the Net::IMAP::ResponseReader when processing large responses containing numerous string literals. This can...

net-imap: ruby: Net::IMAP: Information disclosure via man-in-the-middle attack bypassing TLS

A flaw was found in the Ruby net-imap library. When upgrading a cleartext IMAP connection to TLS using the Net::IMAPstarttls method, the library improperly handles certain responses received during STARTTLS negotiation. A man-in-the-middle MITM attacker can inject a predicted tagged OK response...