{"answers":{"affected":"2 open source packages ship an affected version, including enshrined/svg-sanitize.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-107381 exists.","fix":"Upgrade enshrined/svg-sanitize to 1.0.0 or later.","what":"CVE-2026-107381 is a medium-severity denial of service vulnerability in darylldoyle svg-sanitizer, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-107381 and fix it if it is affected.\n\nWhat it is: CVE-2026-107381 is a medium-severity denial of service vulnerability in darylldoyle svg-sanitizer, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-107381 exists.\n\nAffected packages and fixed versions:\n- enshrined/svg-sanitize (Packagist): affected all versions; fixed in 1.0.0\n- enshrined/svg-sanitize (Packagist): affected all versions; fixed in 1.0.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-107381/ (Markdown: https://insights.sbomify.com/CVE-2026-107381/index.md)","id":"CVE-2026-107381","markdown":"https://insights.sbomify.com/CVE-2026-107381/index.md","name":"CVE-2026-107381","record":{"aliases":["GHSA-m9xh-6747-9r6f"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"PHP SVG sanitizer","requires_auth":"none","summary":"Attackers can bypass nesting limits in svg-sanitizer via mixed-case attributes, causing resource exhaustion in applications rendering sanitized SVGs.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"},{"id":"CWE-178","name":"Improper Handling of Case Sensitivity"}],"description":"svg-sanitizer is a PHP SVG/XML sanitizer. Prior to 1.0.0, Resolver::processReferences() in src/ElementReference/Resolver.php builds the SVG \u003cuse\u003e reference graph with a case-sensitive href attribute predicate before cleanHrefAttributes() normalizes mixed-case names. An attacker can provide xlink:HrEf on nested \u003cuse\u003e elements so the graph omits those references, after which the sanitizer converts the attribute to canonical xlink:href and returns the live nesting structure without applying the useNestingLimit protection. A consuming application that renders the sanitized SVG can therefore be exposed to the resource exhaustion that control is designed to prevent. This issue is fixed in version 1.0.0.","ecosystems":["Packagist"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"svg-sanitizer: Mixed-case xlink:HrEf skips the `\u003cuse\u003e` nesting-DoS check in Resolver::processReferences","id":"CVE-2026-107381","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Packagist","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"MariaDB Connector/Node.js: Uncaught exception crashes the client during ed25519 authentication with zero-configuration TLS","id":"CVE-2026-107382"},"packages":[{"ecosystem":"Packagist","fixed":["1.0.0"],"introduced":["0"],"last_affected":[],"package":"enshrined/svg-sanitize","purl":null,"source":"GHSA-m9xh-6747-9r6f"},{"ecosystem":"Packagist","fixed":["1.0.0"],"introduced":["0"],"last_affected":[],"package":"enshrined/svg-sanitize","purl":"pkg:composer/enshrined/svg-sanitize","source":"GHSA-m9xh-6747-9r6f"}],"prev":{"headline":"enshrined/svg-sanitize: Stored XSS via DTD Entity / HTML5 Named Character Reference Collision","id":"CVE-2026-107380"},"products":["svg-sanitizer"],"published":"2026-10-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-18","vendors":["darylldoyle"]},"summary":"Attackers can bypass nesting limits in svg-sanitizer via mixed-case attributes, causing resource exhaustion in applications rendering sanitized SVGs.","url":"https://insights.sbomify.com/CVE-2026-107381/"}