CVE-2026-31899

CVE-2026-31899: CairoSVG の再帰的 要素増幅による指数関数的 DoS キーワード: CVE-2026-31899、CairoSVG、指数関数的 DoS、SVG 爆弾、再帰的 use 要素、サービス妨害、XML 増幅、Python SVG の脆弱性、CWE-400、制御不能なリソース消費、billion laughs SVG 目次 概要 脆弱性の詳細 技術的分析 概念実証 影響 対策 CVSS メトリクス 参照 連絡先 概要 CairoSVG における指数関数的サービス妨害（DoS）CVE-2026-31899 — わずか 1,411 バイトの SVG...

Astra Linux – Vulnerability in Firefox

The SVG element could have been used to load unexpected content that might execute scripts under certain circumstances. Although the specification appears to allow this, other browsers do not do so. Web developers relied on this property for script security, so Gecko’s implementation was aligned...

Linux Distros Unpatched Vulnerability : CVE-2026-73648

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG...

DEBIAN-CVE-2026-73648

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG reference elements in SVGALLOWLOCALHREF only when they used xlink:href, even though browsers also accept the plain href attribute. Applicatio...

CVE-2026-73648

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG reference elements in SVGALLOWLOCALHREF only when they used xlink:href, even though browsers also accept the plain href attribute. Applicatio...

CVE-2026-73648

The provided details describe a vulnerability in rails-html-sanitizer (affecting Rails 1.0.3 through 1.7.1) where the PermitScrubber restricted SVG reference elements in SVG_ALLOW_LOCAL_HREF only if xlink:href was used, though browsers accept plain href. This could allow external references for n...

CVE-2026-73648 rails-html-sanitizer: Possible XSS vulnerability with certain configurations

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG reference elements in SVGALLOWLOCALHREF only when they used xlink:href, even though browsers also accept the plain href attribute. Applicatio...

CVE-2026-73648 rails-html-sanitizer: Possible XSS vulnerability with certain configurations

rails-html-sanitizer is responsible for sanitizing HTML fragments in Rails applications. From 1.0.3 until 1.7.1, Rails::HTML::PermitScrubber restricted SVG reference elements in SVGALLOWLOCALHREF only when they used xlink:href, even though browsers also accept the plain href attribute. Applicatio...

UBUNTU-CVE-2026-73490

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Prior to 2.25.2, Loofah's HTML5 sanitizer applies its local-reference restriction only to the xlink:href attribute on SVG use and feImage elements, while browsers also accept...

EUVD-2026-57626

Loofah is a general library for manipulating and transforming HTML/XML documents and fragments, built on top of Nokogiri. Prior to 2.25.2, Loofah's HTML5 sanitizer applies its local-reference restriction only to the xlink:href attribute on SVG use and feImage elements, while browsers also accept...

PT-2026-71724

Name of the Vulnerable Software and Affected Versions rails-html-sanitizer versions 1.0.3 through 1.7.0 Description The Rails::HTML::PermitScrubber component fails to properly restrict SVG reference elements when SVG ALLOW LOCAL HREF is used. While the scrubber restricts the xlink:href attribute,...

Security update for python-CairoSVG (moderate)

openSUSE security update: security update for python-cairosvg ------------------------------------------------------------- Announcement ID: openSUSE-SU-2026:20886-1 Rating: moderate References: bsc1259690 Cross-References: CVE-2026-31899 CVSS scores: CVE-2026-31899 SUSE : 5.5...

Fedora 44 : python-cairosvg (2026-448e26a9c8)

The remote Fedora 44 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-448e26a9c8 advisory. Security fix for CVE-2026-31899: https://nvd.nist.gov/vuln/detail/CVE-2026-31899 / https://github.com/Kozea/CairoSVG/security/advisories/GHSA-f38f-5xpm-9r7c...

MGASA-2026-0104 Updated python-cairosvg packages fix security vulnerability

CairoSVG vulnerable to Exponential DoS via recursive element amplification. CVE-2026-31899...

Security update for python-CairoSVG

This update for python-CairoSVG fixes the following issue: CVE-2026-31899: denial of service via recursive element amplification bsc1259690. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch". Alternatively you ca...

Fedora 43 : python-cairosvg (2026-ec61ca906c)

The remote Fedora 43 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2026-ec61ca906c advisory. Security fix for CVE-2026-31899: https://nvd.nist.gov/vuln/detail/CVE-2026-31899 / https://github.com/Kozea/CairoSVG/security/advisories/GHSA-f38f-5xpm-9r7c...

SUSE CVE-2026-31899

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input...

DEBIAN-CVE-2026-31899

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input...

CVE-2026-31899

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input...

PYSEC-2026-2122

CairoSVG is an SVG converter based on Cairo, a 2D graphics library. Prior to Kozea/CairoSVG has exponential denial of service via recursive element amplification in cairosvg/defs.py. This causes CPU exhaustion from a small input...