CVE-2026-54502 Oj: Stack Buffer Overflow in Oj.dump via Large Indent

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.2, Oj.dump is vulnerable to a stack-based buffer overflow when a large :indent value is provided by the developer. fillindent in dump.h calls memsetindentstr, ' ', sizetopts-indent without...

CVE-2026-54502

Oj (Optimized JSON) is a Ruby gem that provides a JSON parser and object marshaller. Vulnerability: in versions prior to 3.17.2, Oj.dump can trigger a stack-based buffer overflow when a very large indent value is used. The root cause is fill_indent in dump.h calling memset(indent_str, ' ', (size_...

CVE-2026-54500

Oj Optimized JSON is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.3, Oj.load in :object mode reads uninitialized stack memory and, for long keys, reads out of bounds when parsing a JSON object whose key is 254 bytes or longer. The interned bytes can surfac...

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: 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 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-2026-54696 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...

GHSA-PR7J-96CJ-549H vulnerabilities

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

GHSA-72F5-RR8C-R6GR vulnerabilities

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

CVE-2026-44160 vulnerabilities

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

CVE-2026-44024 vulnerabilities

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

CVE-2026-44025 vulnerabilities

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

CVE-2026-44161 vulnerabilities

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

CVE-2026-44160 vulnerabilities

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

GHSA-PR7J-96CJ-549H vulnerabilities

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

GHSA-J9CW-HWQF-85W7 vulnerabilities

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

CVE-2026-44024 vulnerabilities

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

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...