{"answers":{"affected":"3 open source packages ship an affected version, including changedetection.io and changedetection-io. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-43891 exists.","fix":"Upgrade changedetection.io to 0.55.1 or later.","what":"CVE-2026-43891 is a high-severity path traversal vulnerability in dgtlmoon changedetection.io, published on 12 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-43891 and fix it if it is affected.\n\nWhat it is: CVE-2026-43891 is a high-severity path traversal vulnerability in dgtlmoon changedetection.io, published on 12 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-43891 exists.\n\nAffected packages and fixed versions:\n- changedetection.io (PyPI): affected all versions; fixed in 0.55.1\n- changedetection-io (PyPI): affected all versions; fixed in 0.55.1\n- changedetection-io (PyPI): affected all versions; fixed in 0.55.1\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-2026-43891/ (Markdown: https://insights.sbomify.com/CVE-2026-43891/index.md)","id":"CVE-2026-43891","markdown":"https://insights.sbomify.com/CVE-2026-43891/index.md","name":"CVE-2026-43891","record":{"aliases":["GHSA-8757-69j2-hx56","PYSEC-2026-30"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Web page change detection tool","requires_auth":"none","summary":"An attacker can read arbitrary local files by restoring a crafted backup archive containing malicious snapshot paths in changedetection.io.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"changedetection","vendor":"webtechnologies"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-73","name":"External Control of File Name or Path"}],"description":"changedetection.io is a free open source web page change detection tool. Prior to 0.55.1, the vulnerability is caused by trusting attacker-controlled snapshot paths restored from backup files. The vulnerable flow starts in the backup restore logic. When a backup ZIP is restored, the application extracts the archive and copies each restored watch UUID directory directly into the live datastore using shutil.copytree(entry.path, dst_dir). This preserves attacker-controlled files inside the restored watch directory, including history.txt. After restore, the application parses history.txt in the watch history property and  returns the contents of the targeted local file. This vulnerability is fixed in 0.55.1.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"changedetection.io: Arbitrary Local File Read via crafted backup restore","id":"CVE-2026-43891","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"AntSword: Incomplete noxss() sanitization leads to 1-click RCE via jquery.terminal format code injection","id":"CVE-2026-43892"},"packages":[{"ecosystem":"PyPI","fixed":["0.55.1"],"introduced":["0"],"last_affected":[],"package":"changedetection-io","purl":"pkg:pypi/changedetection-io","source":"GHSA-8757-69j2-hx56"},{"ecosystem":"PyPI","fixed":["0.55.1"],"introduced":["0"],"last_affected":[],"package":"changedetection-io","purl":"pkg:pypi/changedetection-io","source":"PYSEC-2026-30"},{"ecosystem":"PyPI","fixed":["0.55.1"],"introduced":["0"],"last_affected":[],"package":"changedetection.io","purl":null,"source":"GHSA-8757-69j2-hx56"}],"prev":{"headline":"Missing authorization in outline","id":"CVE-2026-43890"},"products":["changedetection.io"],"published":"2026-05-12","related":[{"cvss_score":9.8,"headline":"changedetection.io has an Authentication Bypass via Decorator Ordering","id":"CVE-2026-35490","kev_date_added":null,"published":"2026-04-07"},{"cvss_score":8.8,"headline":"changedetection.io: XPath - Arbitrary File Read via unparsed-text()","id":"CVE-2026-29039","kev_date_added":null,"published":"2026-03-06"},{"cvss_score":8.8,"headline":"changedetection.io: Zip Slip vulnerability in the backup restore functionality","id":"CVE-2026-29065","kev_date_added":null,"published":"2026-03-06"},{"cvss_score":8.6,"headline":"changedetection.io Vulnerable to Server-Side Request Forgery (SSRF) via Watch URLs","id":"CVE-2026-27696","kev_date_added":null,"published":"2026-02-25"},{"cvss_score":8.3,"headline":"Changedetection.io Discloses Environment Variables via jq env Builtin in Include Filters","id":"CVE-2026-33981","kev_date_added":null,"published":"2026-03-27"},{"cvss_score":8.2,"headline":"changedetection.io: XXE vulnerability in the changedetection.io project","id":"CVE-2026-41895","kev_date_added":null,"published":"2026-05-12"}],"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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-13","vendors":["dgtlmoon"]},"summary":"An attacker can read arbitrary local files by restoring a crafted backup archive containing malicious snapshot paths in changedetection.io.","url":"https://insights.sbomify.com/CVE-2026-43891/"}