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rubysec.com /1 month ago

CVE-2026-47737 (puma): Puma PROXY Protocol v1 Accepts Repeated Protocol Headers on Persistent Connections

Originally appeared on RubySec.## Impact Puma is vulnerable to source IP spoofing when set_remote_address proxy_protocol: :v1 is enabled and persistent connections are used. PROX...

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rubysec.com /2 weeks ago

CVE-2026-44024 (fluentd): Fluentd is Vulnerable to Remote Code Execution (RCE) via Arbitrary File Write in `${tag}` Plac...

Originally appeared on RubySec.Fluentd allows dynamically constructing file paths using the `${tag}` placeholder. It was discovered that validation for this placeholder was insuffi...

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rubysec.com /1 month ago

CVE-2026-47736 (puma): Puma PROXY Protocol v1 Parser Allows Remote Memory Exhaustion

Originally appeared on RubySec.## Impact PROXY protocol support for Puma was added in version 5.5.0. When PROXY protocol v1 support is enabled, Puma reads incoming bytes into an...

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rubysec.com /1 month ago

CVE-2026-44587 (carrierwave): CarrierWave has a denylisted_content_type bypass via Unescaped Regex Metacharacters

Originally appeared on RubySec.### Summary CarrierWave's content_type_denylist check fails to escape regex metacharacters in string entries, causing the denylist to silently not m...

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thehackernews.com /1 month ago

LiteLLM Flaw CVE-2026-42271 Exploited in the Wild, Chains to Unauthenticated RCE

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added a high-severity flaw impacting BerriAI LiteLLM to its Known Exploited Vulnerabilities (KEV) catalog...

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rubysec.com /1 month ago

CVE-2026-33637 (faraday): Faraday has a possible incomplete fix for GHSA-33mh-2634-fwr2 - protocol-relative URI objects...

Originally appeared on RubySec.## Summary `Faraday::Connection#build_exclusive_url` still allows protocol-relative host override when the request target is provided as a `URI` obj...

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gbhackers.com /1 month ago

Critical Splunk Enterprise Pre-Auth RCE Chain Exposes Databases

A critical pre-authentication remote code execution (RCE) vulnerability in Splunk Enterprise has been disclosed, carrying a near-perfect CVSS score of 9.8. Tracked as CVE-2026-2025...

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thehackernews.com /1 month ago

PAN-OS GlobalProtect Authentication Bypass (CVE-2026-0257) Under Active Exploitation

Palo Alto Networks has warned that a recently disclosed medium-severity security flaw impacting PAN-OS and Prisma Access has come under active exploitation in the wild. The vulner...

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ubuntu.com /4 days ago

Januscape vulnerability CVE-2026-53359 mitigations available

Introduction A local privilege escalation (LPE) vulnerability affecting the Linux kernel was publicly disclosed on July 6, 2026. The vulnerability was assigned CVE ID CVE-2026-5335...

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gbhackers.com /2 weeks ago

Splunk Secure Gateway RCE Vulnerability Lets Low-Privileged Attackers Execute Arbitrary Code

A newly disclosed high-severity vulnerability in Splunk Secure Gateway (SSG) allows low-privileged authenticated users to achieve remote code execution (RCE) on affected systems, s...

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thehackernews.com /2 weeks ago

Public PoC Released for Critical libssh2 CVE-2026-55200 Client-Side SSH Flaw

A public proof-of-concept is now out for CVE-2026-55200, a critical flaw in libssh2 that lets a malicious or compromised SSH server trigger memory corruption on a connecting client...

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rubysec.com /2 weeks ago

CVE-2026-49342 (yard): YARD static cache reads raw traversal paths before router sanitization

Originally appeared on RubySec.## Summary YARD's static cache lookup reads a request path before the router's path cleanup runs. When a server is configured with a document root,...

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cloud.google.com /3 weeks ago

Zero-Day Exploitation of Vulnerability (CVE-2026-20245) in Cisco Catalyst SD-WAN Manager

Written by: Chester Sng, Pete Boonyakarn, Logeswaran Nadarajan Introduction In early 2026, Mandiant identified a threat actor targeting SD-WAN infrastructure at a service provide...

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ubuntu.com /1 month ago

CVE-2026-46333 (ssh-keysign-pwn) Linux kernel vulnerability mitigations

An information disclosure security vulnerability in the Linux kernel was publicly disclosed on May 15th, 2026. The vulnerability was reported by Qualys and fixed in the mainline Li...

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rubysec.com /3 weeks ago

CVE-2026-55518 (avo): Avo - Missing Authorization in Avo Association Attach Endpoint Allows Unauthorized Relationship Ma...

Originally appeared on RubySec.## Summary A critical missing authorization flaw exists in Avo's association attach workflow. The UI and `GET /resources/:resource/:id/:related/new`...

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rubysec.com /1 month ago

CVE-2026-47240 (net-imap): Net::IMAP: Command Injection via non-synchronizing literal in "raw" argument

Originally appeared on RubySec.Several Net::IMAP commands accept a "raw data" argument that is sent verbatim after validation to prevent command injection. However, if a server do...

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rubysec.com /2 weeks ago

CVE-2026-44025 (fluentd): Fluentd is Vulnerable to Exposure of Sensitive Information via Monitor Agent API

Originally appeared on RubySec.Fluentd's Monitor Agent plugin (`in_monitor_agent`) exposes internal metrics and plugin information via a REST API. It was discovered that the API re...

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rubysec.com /1 week ago

CVE-2026-54696 (json): JSON generator heap buffer overflow when streaming to an IO

Originally appeared on RubySec.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...

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rubysec.com /3 weeks ago

CVE-2026-54297 (faraday): Faraday - Uncontrolled recursion in NestedParamsEncoder allows stack exhaustion DoS via deeply...

Originally appeared on RubySec.# Uncontrolled Recursion in NestedParamsEncoder Allows Stack Exhaustion DoS via Deeply Nested Query Parameters ## Summary `Faraday::NestedParamsE...

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rubysec.com /2 weeks ago

CVE-2026-44161 (fluentd): Fluentd is Vulnerable to Server-Side Request Forgery (SSRF) via Placeholder Expansion in `out_...

Originally appeared on RubySec.The `out_http` output plugin allows the use of placeholders (such as `${tag}`) in the `endpoint` configuration parameter. It was discovered that if t...

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rubysec.com /3 weeks ago

CVE-2026-54500 (oj): Oj - intern.c form_attr (uninitialized stack read)

Originally appeared on RubySec.### Summary `Oj.load` in `:object` mode reads uninitialized stack memory (and, for long keys, reads out of bounds) when parsing a JSON object whose...

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thehackernews.com /1 month ago

Critical Splunk Enterprise Flaw Lets Attackers Run Code Without Authentication

Splunk has released security updates to address a critical security flaw in Splunk Enterprise that could be exploited to conduct unauthenticated file operations and even remote cod...

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rubysec.com /1 month ago

CVE-2026-47241 (net-imap): Net::IMAP: Denial of Service via incomplete raw argument validation

Originally appeared on RubySec.### Summary Several Net::IMAP commands accept a raw string argument which is only validated to prevent CRLF injection and then sent verbatim. If th...

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rubysec.com /1 month ago

CVE-2026-44476 (doorkeeper-openid_connect): Dynamic Client Registration feature creates public clients with client_secre...

Originally appeared on RubySec.### Impact The `DynamicClientRegistrationController#register` action hard-codes `confidential: false` when creating applications (dynamic_client_reg...

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