MiracleLinux 9 : ruby:4.0 (AXSA:2026-1284:01)

The remote MiracleLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the AXSA:2026-1284:01 advisory. ruby/json: Ruby JSON: Denial of Service or Information Disclosure via format string injection CVE-2026-33210 erb: ERB: Arbitrary code execution via...

SUSE SLED15: libruby3_4-3_4 / ruby3.4 / ruby3.4-devel / ruby3.4-devel-extra / etc (SUSE-SU-2026:3090-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:3090-1 advisory. This update for ruby3.4 fixes the following issues - CVE-2026-42258: Net:IMAP: Command Injection via Symbol...

Linux Distros Unpatched Vulnerability : CVE-2026-54171

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following...

Fedora 44 : ruby (2026-32d5a3d450)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-32d5a3d450 advisory. Ruby 4.0.6 is released. This new ruby contains several security fixes in net-snmp. Tenable has extracted the preceding description block directly fr...

CVE-2026-55518

Avo is a framework to create admin panels for Ruby on Rails apps. Prior to 3.32.1 and 4.0.0.beta.51, Avo's association attach workflow checks attach? in the UI and GET /resources/:resource/:id/:related/new path, but the actual write endpoint, POST /resources/:resource/:id/:related, does not run t...

UBUNTU-CVE-2026-53727

cssparser is a Ruby CSS parser. From 2.2.0 until 3.0.0, CssParser::Parserreadremotefile in lib/cssparser/parser.rb, and therefore loaduri! and the @import-following branch of addblock!, issued HTTP and HTTPS requests against any host, port, and URI without a scheme allowlist, host or IP filtering...

CVE-2026-53727

cssparser is a Ruby CSS parser. From 2.2.0 until 3.0.0, CssParser::Parserreadremotefile in lib/cssparser/parser.rb, and therefore loaduri! and the @import-following branch of addblock!, issued HTTP and HTTPS requests against any host, port, and URI without a scheme allowlist, host or IP filtering...

CVE-2026-55518

Avo is a framework to create admin panels for Ruby on Rails apps. Prior to 3.32.1 and 4.0.0.beta.51, Avo's association attach workflow checks attach? in the UI and GET /resources/:resource/:id/:related/new path, but the actual write endpoint, POST /resources/:resource/:id/:related, does not run t...

CVE-2026-55518 Avo: Missing Authorization in Avo Association Attach Endpoint Allows Unauthorized Relationship Manipulation and Privilege Escalation

Avo is a framework to create admin panels for Ruby on Rails apps. Prior to 3.32.1 and 4.0.0.beta.51, Avo's association attach workflow checks attach? in the UI and GET /resources/:resource/:id/:related/new path, but the actual write endpoint, POST /resources/:resource/:id/:related, does not run t...

EUVD-2026-45333

viewcomponent is a framework for building reusable, testable, and encapsulated view components in Ruby on Rails. From 4.0.0 until 4.12.0, ViewComponent::Basearoundrender can return HTML-unsafe strings that bypass the escaping behavior applied to normal call return values. This creates an XSS risk...

CVE-2026-53727

cssparser is a Ruby CSS parser. From 2.2.0 until 3.0.0, CssParser::Parserreadremotefile in lib/cssparser/parser.rb, and therefore loaduri! and the @import-following branch of addblock!, issued HTTP and HTTPS requests against any host, port, and URI without a scheme allowlist, host or IP filtering...

CVE-2026-53727

cssparser is a Ruby CSS parser. From 2.2.0 until 3.0.0, CssParser::Parserreadremotefile in lib/cssparser/parser.rb, and therefore loaduri! and the @import-following branch of addblock!, issued HTTP and HTTPS requests against any host, port, and URI without a scheme allowlist, host or IP filtering...

AZL-92460 CVE-2026-54171 affecting package rubygem-excon for versions less than 0.102.0-2

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

CVE-2026-54463

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.1, draft versions of the WebSocket protocol in websocket-driver include a length header that allows an arbitrarily large integer to be encoded as bytes with the high bit set, and a server or client can send an...

DEBIAN-CVE-2026-54463

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.1, draft versions of the WebSocket protocol in websocket-driver include a length header that allows an arbitrarily large integer to be encoded as bytes with the high bit set, and a server or client can send an...

CVE-2026-54171

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

UBUNTU-CVE-2026-54171

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

EUVD-2026-45312

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

CVE-2026-54171 Excon: redact additional sensitive/risky headers when following redirects

Excon is usable, fast, simple HTTP 1.1 for Ruby. Prior to 1.5.0, Excon's RedirectFollower middleware failed to strip additional sensitive headers when following redirects and did not provide a custom list of headers to strip. This could cause inadvertent leakage of sensitive data when the initial...

EUVD-2026-45310

websocket-driver is a WebSocket protocol handler with pluggable I/O. Prior to 0.8.1, draft versions of the WebSocket protocol in websocket-driver include a length header that allows an arbitrarily large integer to be encoded as bytes with the high bit set, and a server or client can send an...