{"answers":{"affected":"3 open source packages ship an affected version, including thumbor.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53504 exists.","fix":"Upgrade thumbor to 7.8.0 or later.","what":"CVE-2026-53504 is a high-severity denial of service vulnerability in thumbor, published on 31 Jul 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-2026-53504 and fix it if it is affected.\n\nWhat it is: CVE-2026-53504 is a high-severity denial of service vulnerability in thumbor, published on 31 Jul 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-2026-53504 exists.\n\nAffected packages and fixed versions:\n- thumbor (PyPI): affected all versions; fixed in 7.8.0\n- thumbor (PyPI): affected all versions; fixed in 7.8.0\n- thumbor (PyPI): affected all versions; fixed in 7.8.0\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-2026-53504/ (Markdown: https://insights.sbomify.com/CVE-2026-53504/index.md)","id":"CVE-2026-53504","markdown":"https://insights.sbomify.com/CVE-2026-53504/index.md","name":"CVE-2026-53504","record":{"aliases":["DEBIAN-CVE-2026-53504","GHSA-5vjc-7cxw-4w6j","PYSEC-2026-3616","UBUNTU-CVE-2026-53504"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Image processing service","requires_auth":"none","summary":"Attackers can cause denial of service in Thumbor by sending crafted URLs to the convolution filter, exhausting server resources.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Thumbor is an open-source photo thumbnail service by globo.com. Prior to 7.8.0, the convolution filter regular expression performs exponential backtracking on crafted repeated numeric input, allowing a URL request to exhaust processing time. This issue is fixed in 7.8.0.","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":"Thumbor has Regex Denial of Service (ReDoS) in `convolution` filter","id":"CVE-2026-53504","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Thumbor proportion filter allows unbounded post-transform resize leading to remote DoS","id":"CVE-2026-53505"},"packages":[{"ecosystem":"PyPI","fixed":["7.8.0"],"introduced":["0"],"last_affected":[],"package":"thumbor","purl":null,"source":"GHSA-5vjc-7cxw-4w6j"},{"ecosystem":"PyPI","fixed":["7.8.0"],"introduced":["0"],"last_affected":[],"package":"thumbor","purl":"pkg:pypi/thumbor","source":"GHSA-5vjc-7cxw-4w6j"},{"ecosystem":"PyPI","fixed":["7.8.0"],"introduced":["0"],"last_affected":[],"package":"thumbor","purl":"pkg:pypi/thumbor","source":"PYSEC-2026-3616"}],"prev":{"headline":"Thumbor convolution filter allows divide-by-zero in C extension leading to remote DoS","id":"CVE-2026-53503"},"products":["thumbor"],"published":"2026-07-31","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":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"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":"2026-07-31","vendors":["thumbor"]},"summary":"Attackers can cause denial of service in Thumbor by sending crafted URLs to the convolution filter, exhausting server resources.","url":"https://insights.sbomify.com/CVE-2026-53504/"}