{"answers":{"affected":"4 open source packages ship an affected version, including wagtail.","exploited":"There is no known exploitation of CVE-2026-123820 in the wild and no public exploit code.","exposure":"","fix":"Upgrade wagtail to a fixed version for your release line: 7.0.9, 7.3.4, 7.4.3 or 8.0rc2.","what":"CVE-2026-123820 is a medium-severity vulnerability in wagtail, published on 9 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123820 and fix it if it is affected.\n\nWhat it is: CVE-2026-123820 is a medium-severity vulnerability in wagtail, published on 9 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-123820 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- wagtail (PyPI): affected all versions; fixed in 7.0.9\n- wagtail (PyPI): affected from 7.1; fixed in 7.3.4\n- wagtail (PyPI): affected from 7.4; fixed in 7.4.3\n- wagtail (PyPI): affected from 8.0rc1; fixed in 8.0rc2\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-2026-123820/ (Markdown: https://insights.sbomify.com/CVE-2026-123820/index.md)","id":"CVE-2026-123820","markdown":"https://insights.sbomify.com/CVE-2026-123820/index.md","name":"CVE-2026-123820","record":{"aliases":["GHSA-c2xx-cjmh-9q8f"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-280","name":"Improper Handling of Insufficient Permissions or Privileges"}],"description":"Wagtail is an open source content management system built on Django. Prior to 7.0.9, 7.3.4, 7.4.3, and 8.0rc2, the Wagtail Documents and Images API V2 excludes directly restricted collections but fails to exclude their descendant collections, even though descendants inherit ancestor view restrictions. An API user can therefore list the filenames and names of documents and images stored in descendant collections that should remain private. This issue is fixed in versions 7.0.9, 7.3.4, 7.4.3, and 8.0rc2.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Wagtail: Improper restriction handling on descendant collections in Documents and Images API","id":"CVE-2026-123820","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":null,"year":"2026"},"n_packages":4,"n_references":9,"next":{"headline":"Symfony: XXE (Local File Read) in Config XmlUtils::parse() via validateOnParse = true","id":"CVE-2026-123824"},"nickname":null,"packages":[{"ecosystem":"PyPI","fixed":["7.0.9"],"introduced":["0"],"last_affected":[],"package":"wagtail","purl":null,"source":"GHSA-c2xx-cjmh-9q8f"},{"ecosystem":"PyPI","fixed":["7.3.4"],"introduced":["7.1"],"last_affected":[],"package":"wagtail","purl":null,"source":"GHSA-c2xx-cjmh-9q8f"},{"ecosystem":"PyPI","fixed":["7.4.3"],"introduced":["7.4"],"last_affected":[],"package":"wagtail","purl":null,"source":"GHSA-c2xx-cjmh-9q8f"},{"ecosystem":"PyPI","fixed":["8.0rc2"],"introduced":["8.0rc1"],"last_affected":[],"package":"wagtail","purl":null,"source":"GHSA-c2xx-cjmh-9q8f"}],"prev":{"headline":"Wagtail: Improper permission handling when copying snippets","id":"CVE-2026-123819"},"products":["wagtail"],"published":"2026-11-09","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-11-10","vendors":["wagtail"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123820/"}