{"answers":{"affected":"3 open source packages ship an affected version, including zeroconf. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-48045 in the wild and no public exploit code.","fix":"Upgrade zeroconf to 0.149.12 or later.","what":"CVE-2026-48045 is a medium-severity denial of service vulnerability in python-zeroconf, published on 17 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-48045 and fix it if it is affected.\n\nWhat it is: CVE-2026-48045 is a medium-severity denial of service vulnerability in python-zeroconf, published on 17 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-48045 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- zeroconf (PyPI): affected all versions; fixed in 0.149.12\n- zeroconf (PyPI): affected all versions; fixed in 0.149.12\n- zeroconf (PyPI): affected all versions; fixed in 0.149.12\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-2026-48045/ (Markdown: https://insights.sbomify.com/CVE-2026-48045/index.md)","id":"CVE-2026-48045","markdown":"https://insights.sbomify.com/CVE-2026-48045/index.md","name":"CVE-2026-48045","record":{"aliases":["DEBIAN-CVE-2026-48045","GHSA-9663-mqmp-p9mm","PYSEC-2026-3435","UBUNTU-CVE-2026-48045"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Python Zeroconf library","requires_auth":"none","summary":"Unauthenticated local attackers can cause memory exhaustion and CPU burn in the Zeroconf library by flooding spoofed truncated queries.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"zeroconf","vendor":"paulsm"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.12, AsyncListener.handle_query_or_defer retained every truncated TC-bit incoming query, each up to _MAX_MSG_ABSOLUTE = 8966 bytes, in self._deferred[addr] and armed a per-address timer in self._timers[addr] without capping the per-address list or distinct addr keys, allowing unauthenticated hosts on the local link over UDP/5353 (224.0.0.251 / ff02::fb) to spoof sources, grow _deferred and _timers, and cause memory exhaustion and quadratic CPU burn. This issue is fixed in version 0.149.12.","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":true,"headline":"Zeroconf: Unbounded TC-deferred queue allows LAN-local memory exhaustion via spoofed-source flood","id":"CVE-2026-48045","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"Streambert Vulnerable to Remote Code Execution (RCE) via Unvalidated Auto-Updater IPC Handler","id":"CVE-2026-48046"},"packages":[{"ecosystem":"PyPI","fixed":["0.149.12"],"introduced":["0"],"last_affected":[],"package":"zeroconf","purl":null,"source":"GHSA-9663-mqmp-p9mm"},{"ecosystem":"PyPI","fixed":["0.149.12"],"introduced":["0"],"last_affected":[],"package":"zeroconf","purl":"pkg:pypi/zeroconf","source":"GHSA-9663-mqmp-p9mm"},{"ecosystem":"PyPI","fixed":["0.149.12"],"introduced":["0"],"last_affected":[],"package":"zeroconf","purl":"pkg:pypi/zeroconf","source":"PYSEC-2026-3435"}],"prev":{"headline":"Envoy Zstd Decompressor: Ratio Check at Wrong Loop Depth lead to memory explosion","id":"CVE-2026-48044"},"products":["python-zeroconf"],"published":"2026-07-17","related":[{"cvss_score":6.5,"headline":"Zeroconf: Unbounded recursion in DNS compression-pointer decoder allows LAN-local denial of service","id":"CVE-2026-47180","kev_date_added":null,"published":"2026-07-17"},{"cvss_score":6.5,"headline":"zeroconf: Unbounded exception-dedup state retains packet buffers via traceback frame locals, enabling LAN-local memory exhaustion","id":"CVE-2026-47183","kev_date_added":null,"published":"2026-07-17"},{"cvss_score":6.5,"headline":"Zeroconf: Unbounded DNS record cache allows LAN-local memory exhaustion via multicast flood","id":"CVE-2026-47184","kev_date_added":null,"published":"2026-07-17"},{"cvss_score":5.3,"headline":"Zeroconf: Unvalidated rdlength in record payload readers allows LAN-local cache corruption via crafted mDNS packet","id":"CVE-2026-48487","kev_date_added":null,"published":"2026-07-17"}],"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-17","vendors":["python-zeroconf"]},"summary":"Unauthenticated local attackers can cause memory exhaustion and CPU burn in the Zeroconf library by flooding spoofed truncated queries.","url":"https://insights.sbomify.com/CVE-2026-48045/"}