{"answers":{"affected":"7 open source packages ship an affected version, including django and Django. It affects 4 products.","exploited":"There is no known exploitation of CVE-2018-7536 in the wild and no public exploit code.","fix":"Upgrade django to a fixed version for your release line: 1.11.11, 1.8.19 or 2.0.3.","what":"CVE-2018-7536 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 9 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2018-7536 and fix it if it is affected.\n\nWhat it is: CVE-2018-7536 is a medium-severity denial of service vulnerability in Canonical Ubuntu Linux, published on 9 Mar 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2018-7536 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- django (PyPI): affected from 1.11a1; fixed in 1.11.11\n- django (PyPI): affected from 1.8; fixed in 1.8.19, 1.11.11, 2.0.3\n- django (PyPI): affected from 1.8a1; fixed in 1.8.19\n- django (PyPI): affected from 2.0a1; fixed in 2.0.3\n- Django (PyPI): affected from 1.11a1; fixed in 1.11.11\n- Django (PyPI): affected from 1.8a1; fixed in 1.8.19\n- Django (PyPI): affected from 2.0a1; fixed in 2.0.3\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-2018-7536/ (Markdown: https://insights.sbomify.com/CVE-2018-7536/index.md)","id":"CVE-2018-7536","markdown":"https://insights.sbomify.com/CVE-2018-7536/index.md","name":"CVE-2018-7536","record":{"aliases":["ALPINE-CVE-2018-7536","DEBIAN-CVE-2018-7536","GHSA-r28v-mw67-m5p9","PYSEC-2018-5","RHSA-2019:0051","RHSA-2019:0082","UBUNTU-CVE-2018-7536"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Django web framework","requires_auth":"none","summary":"Attackers can cause denial of service in Django applications by submitting inputs that trigger catastrophic backtracking in the urlize template filter.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"ubuntu_linux","vendor":"canonical"},{"product":"debian_linux","vendor":"debian"},{"product":"django","vendor":"djangoproject"},{"product":"openstack","vendor":"redhat"}],"cvss":{"score":5.3,"severity":"medium","source":"nvd","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.0"},"cwes":[{"id":"CWE-185","name":"Incorrect Regular Expression"}],"description":"An issue was discovered in Django 2.0 before 2.0.3, 1.11 before 1.11.11, and 1.8 before 1.8.19. The django.utils.html.urlize() function was extremely slow to evaluate certain inputs due to catastrophic backtracking vulnerabilities in two regular expressions (only one regular expression for Django 1.8.x). The urlize() function is used to implement the urlize and urlizetrunc template filters, which were thus vulnerable.","ecosystems":["PyPI","Red Hat:openstack:10::el7","Red Hat:openstack:13::el7"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Django denial-of-service possibility in urlize and urlizetrunc template filters","id":"CVE-2018-7536","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":"canonical:ubuntu_linux","products":["canonical:ubuntu_linux","debian:debian_linux","djangoproject:django","redhat:openstack"],"type":"denial_of_service","year":"2018"},"n_packages":12,"n_references":12,"next":{"headline":"Django Denial-of-service possibility in truncatechars_html and truncatewords_html template filters","id":"CVE-2018-7537"},"packages":[{"ecosystem":"PyPI","fixed":["1.11.11"],"introduced":["1.11a1"],"last_affected":[],"package":"Django","purl":null,"source":"GHSA-r28v-mw67-m5p9"},{"ecosystem":"PyPI","fixed":["1.8.19"],"introduced":["1.8a1"],"last_affected":[],"package":"Django","purl":null,"source":"GHSA-r28v-mw67-m5p9"},{"ecosystem":"PyPI","fixed":["2.0.3"],"introduced":["2.0a1"],"last_affected":[],"package":"Django","purl":null,"source":"GHSA-r28v-mw67-m5p9"},{"ecosystem":"PyPI","fixed":["1.11.11"],"introduced":["1.11a1"],"last_affected":[],"package":"django","purl":"pkg:pypi/django","source":"GHSA-r28v-mw67-m5p9"},{"ecosystem":"PyPI","fixed":["1.8.19","1.11.11","2.0.3"],"introduced":["1.8","1.11","2.0"],"last_affected":[],"package":"django","purl":"pkg:pypi/django","source":"PYSEC-2018-5"},{"ecosystem":"PyPI","fixed":["1.8.19"],"introduced":["1.8a1"],"last_affected":[],"package":"django","purl":"pkg:pypi/django","source":"GHSA-r28v-mw67-m5p9"},{"ecosystem":"PyPI","fixed":["2.0.3"],"introduced":["2.0a1"],"last_affected":[],"package":"django","purl":"pkg:pypi/django","source":"GHSA-r28v-mw67-m5p9"},{"ecosystem":"Red Hat:openstack:10::el7","fixed":["0:1.8.19-1.el7ost"],"introduced":["0"],"last_affected":[],"package":"python-django","purl":"pkg:rpm/redhat/python-django","source":"RHSA-2019:0051"},{"ecosystem":"Red Hat:openstack:10::el7","fixed":["0:1.8.19-1.el7ost"],"introduced":["0"],"last_affected":[],"package":"python-django-bash-completion","purl":"pkg:rpm/redhat/python-django-bash-completion","source":"RHSA-2019:0051"},{"ecosystem":"Red Hat:openstack:13::el7","fixed":["0:1.11.11-1.el7ost"],"introduced":["0"],"last_affected":[],"package":"python-django","purl":"pkg:rpm/redhat/python-django","source":"RHSA-2019:0082"},{"ecosystem":"Red Hat:openstack:13::el7","fixed":["0:1.11.11-1.el7ost"],"introduced":["0"],"last_affected":[],"package":"python-django-bash-completion","purl":"pkg:rpm/redhat/python-django-bash-completion","source":"RHSA-2019:0082"},{"ecosystem":"Red Hat:openstack:13::el7","fixed":["0:1.11.11-1.el7ost"],"introduced":["0"],"last_affected":[],"package":"python2-django","purl":"pkg:rpm/redhat/python2-django","source":"RHSA-2019:0082"}],"prev":{"headline":"Privilege escalation in n/a","id":"CVE-2018-7535"},"products":["n/a"],"published":"2018-03-09","related":[{"cvss_score":9.8,"headline":"SaltStack Salt Authentication Bypass","id":"CVE-2020-11651","kev_date_added":"2021-11-03","published":"2020-04-30"},{"cvss_score":9.8,"headline":"OpenSMTPD Remote Code Execution","id":"CVE-2020-7247","kev_date_added":"2022-03-25","published":"2020-01-29"},{"cvss_score":9.8,"headline":"Exim Out-of-bounds Write","id":"CVE-2019-16928","kev_date_added":"2022-03-03","published":"2019-09-27"},{"cvss_score":9.8,"headline":"Exim Buffer Overflow","id":"CVE-2018-6789","kev_date_added":"2021-11-03","published":"2018-02-08"},{"cvss_score":9.8,"headline":"Oracle Java SE and Java SE Embedded Remote Code Execution","id":"CVE-2015-2590","kev_date_added":"2022-03-03","published":"2015-07-16"},{"cvss_score":9.8,"headline":"Oracle JRE Remote Code Execution","id":"CVE-2013-0422","kev_date_added":"2022-05-25","published":"2013-01-10"},{"cvss_score":9.8,"headline":"Oracle Java SE Runtime Environment (JRE) Arbitrary Code Execution","id":"CVE-2011-3544","kev_date_added":"2022-03-03","published":"2011-10-19"}],"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":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-05","vendors":["n/a"]},"summary":"Attackers can cause denial of service in Django applications by submitting inputs that trigger catastrophic backtracking in the urlize template filter.","url":"https://insights.sbomify.com/CVE-2018-7536/"}