VectorFreed

VectorFreed 概要 本ドキュメントでは「VectorFreed」を紹介します。これは、私（@rafabd1）が librsvg で発見した use-after-free（CVE-2026-96889）から始まる脆弱性チェーンです。Node.js/Sharp/libvips ビルドでは、このバグがコマンド実行につながりました。本ドキュメントでは、このバグ、これまでにアプリケーションで確認された経路、そして現在利用可能な修正について説明します。 詳細 SVG は XInclude を通じて別の SVG をインクルードできます。脆弱な経路では、libxml2...

Linux Distros Unpatched Vulnerability : CVE-2026-96889

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions Xincludes with duplicate entity declarations, a use-after-free err...

DEBIAN-CVE-2026-96889

A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions Xincludes with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attack...

CVE-2026-96889

A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions Xincludes with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attack...

CVE-2026-96889

A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions Xincludes with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attack...

CVE-2026-96889 Librsvg: use-after-free when xml includes have duplicated entities

A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions Xincludes with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attack...

CVE-2026-96889

A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions Xincludes with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attack...

CVE-2026-96889

A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions Xincludes with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attack...

RUSTSEC-2026-0305 Use-after-free when XML includes have duplicated entities

Librsvg uses libxml2, a C library, to parse XML. When librsvg parses an SVG document which has a nested Xinclude, an XML entity declaration with a duplicate name as an existing one can cause a use-after-free error. While libxml2 is expanding an internal entity, a recursive XInclude can parse...

Use-after-free when XML includes have duplicated entities

Librsvg uses libxml2, a C library, to parse XML. When librsvg parses an SVG document which has a nested Xinclude, an XML entity declaration with a duplicate name as an existing one can cause a use-after-free error. While libxml2 is expanding an internal entity, a recursive XInclude can parse...

CVE-2026-96889: Use After Free

A flaw was found in librsvg. When processing an SVG document containing nested XML inclusions Xincludes with duplicate entity declarations, a use-after-free error can occur. This vulnerability arises because the library incorrectly frees an XML entity that is still in use by the parser. An attack...

Fedora 46 : rust-librsvg / rust-xml5ever (2026-d804dc1feb)

The remote Fedora 46 host has packages installed that are affected by a vulnerability as referenced in the FEDORA-2026-d804dc1feb advisory. - Update the librsvg crate to version 2.63.2. - Update the xml5ever crate to version 0.39.0. This includes fixes for RUSTSEC-2026-0305. Tenable has extracted...

Astra Linux – Vulnerability in librsvg

A directory traversal vulnerability exists in the URL decoder of librsvg before version 2.56.3. This vulnerability could be exploited by local or remote attackers to access files located in the local filesystem, outside of the expected area. This was demonstrated with the URL...

JLSEC-2026-512

A directory traversal problem in the URL decoder of librsvg before 2.56.3 could be used by local or remote attackers to disclose files on the local filesystem outside of the expected area, as demonstrated by href=".?../../../../../../../../../../etc/passwd" in an xi:include element...

JLSEC-2026-511

In xml.rs in GNOME librsvg before 2.46.2, a crafted SVG file with nested patterns can cause denial of service when passed to the library for processing. The attacker constructs pattern elements so that the number of final rendered objects grows exponentially...

SUSE SLED15 / SLES15 Security Update : librsvg (SUSE-SU-2026:1750-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:1750-1 advisory. This update for librsvg fixes the following issue: - CVE-2026-25727: time: parsing of user-provided input by the RFC 28...

Security update for librsvg

This update for librsvg fixes the following issue: CVE-2026-25727: time: parsing of user-provided input by the RFC 2822 date parser can lead to stack exhaustion bsc1257922. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or...

SUSE-SU-2026:1750-1 Security update for librsvg

This update for librsvg fixes the following issue: - CVE-2026-25727: time: parsing of user-provided input by the RFC 2822 date parser can lead to stack exhaustion bsc1257922...

CVE-2018-25305

librsvg2-bin 2.40.13 contains a buffer overflow vulnerability that allows local attackers to cause a denial of service by processing malformed SVG files. Attackers can supply crafted SVG input to the rsvg conversion tool to trigger a segmentation fault in the cairo image compositor...

CVE-2018-25305

librsvg2-bin 2.40.13 contains a buffer overflow vulnerability that allows local attackers to cause a denial of service by processing malformed SVG files. Attackers can supply crafted SVG input to the rsvg conversion tool to trigger a segmentation fault in the cairo image compositor...