{"answers":{"affected":"3 open source packages ship an affected version, including orjson. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-67221 exists.","fix":"Upgrade orjson to a fixed version for your release line: 3.11.5 or 3.11.6.","what":"CVE-2025-67221 is a high-severity denial of service vulnerability in n/a, published on 22 Jan 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-2025-67221 and fix it if it is affected.\n\nWhat it is: CVE-2025-67221 is a high-severity denial of service vulnerability in n/a, published on 22 Jan 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-2025-67221 exists.\n\nAffected packages and fixed versions:\n- orjson (PyPI): affected all versions; fixed in 3.11.5\n- orjson (PyPI): affected all versions; fixed in 3.11.6\n- orjson (PyPI): affected all versions; fixed in 3.11.6\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-2025-67221/ (Markdown: https://insights.sbomify.com/CVE-2025-67221/index.md)","id":"CVE-2025-67221","markdown":"https://insights.sbomify.com/CVE-2025-67221/index.md","name":"CVE-2025-67221","record":{"aliases":["CLEANSTART-2026-LO28504","CLSA-2026-1789553842","ECHO-7f2f-e83a-5508","GHSA-hx9q-6w63-j58v","MINI-57p8-2v98-fv27","MINI-6vr6-6gqp-j48g","MINI-7r8c-prvw-9m44","MINI-fwf7-6xr3-5g77","MINI-j45w-2pxj-wh6m","MINI-jx8q-7mwm-6f8w","MINI-qchc-j566-m7hp","PYSEC-2026-107","ROOT-APP-PYPI-CVE-2025-67221","SUSE-SU-2026:20920-1","openSUSE-SU-2026:10103-1","openSUSE-SU-2026:20407-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Python JSON library","requires_auth":"none","summary":"Attackers can cause denial of service by submitting deeply nested JSON documents to the orjson.dumps function, which lacks recursion limits.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"mitre","cpe":[{"product":"orjson","vendor":"ijl"}],"cvss":{"score":7.5,"severity":"high","source":"cisa-adp","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-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"The orjson.dumps function in orjson thru 3.11.4 does not limit recursion for deeply nested JSON documents.","ecosystems":["PyPI","SUSE:Linux Enterprise Server 16.0","SUSE:Linux Enterprise Server for SAP applications 16.0","openSUSE:Leap 16.0","openSUSE:Tumbleweed"],"exploits":{"exploitdb":0,"first_seen":"2025-12-01","github_poc":1,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2025-12-01T20:36:04Z","kind":"github_poc","ref":"https://github.com/kpatsakis/CVE-2025-67221","stars":1,"title":"A vulnerability in orjson"}],"tier":"weaponised"},"has_fix":true,"headline":"orjson does not limit recursion for deeply nested JSON documents","id":"CVE-2025-67221","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"denial_of_service","year":"2025"},"n_packages":7,"n_references":2,"next":{"headline":"Information disclosure in n/a","id":"CVE-2025-67223"},"packages":[{"ecosystem":"PyPI","fixed":["3.11.5"],"introduced":["0"],"last_affected":[],"package":"orjson","purl":"pkg:pypi/orjson","source":"PYSEC-2026-107"},{"ecosystem":"PyPI","fixed":["3.11.6"],"introduced":["0"],"last_affected":[],"package":"orjson","purl":null,"source":"GHSA-hx9q-6w63-j58v"},{"ecosystem":"PyPI","fixed":["3.11.6"],"introduced":["0"],"last_affected":[],"package":"orjson","purl":"pkg:pypi/orjson","source":"GHSA-hx9q-6w63-j58v"},{"ecosystem":"SUSE:Linux Enterprise Server 16.0","fixed":["3.10.15-160000.3.1"],"introduced":["0"],"last_affected":[],"package":"python-orjson","purl":"pkg:rpm/suse/python-orjson\u0026distro=SUSE%20Linux%20Enterprise%20Server%2016.0","source":"SUSE-SU-2026:20920-1"},{"ecosystem":"SUSE:Linux Enterprise Server for SAP applications 16.0","fixed":["3.10.15-160000.3.1"],"introduced":["0"],"last_affected":[],"package":"python-orjson","purl":"pkg:rpm/suse/python-orjson\u0026distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20applications%2016.0","source":"SUSE-SU-2026:20920-1"},{"ecosystem":"openSUSE:Leap 16.0","fixed":["3.10.15-160000.3.1"],"introduced":["0"],"last_affected":[],"package":"python-orjson","purl":"pkg:rpm/opensuse/python-orjson\u0026distro=openSUSE%20Leap%2016.0","source":"openSUSE-SU-2026:20407-1"},{"ecosystem":"openSUSE:Tumbleweed","fixed":["3.11.5-1.1"],"introduced":["0"],"last_affected":[],"package":"python-orjson","purl":"pkg:rpm/opensuse/python-orjson\u0026distro=openSUSE%20Tumbleweed","source":"openSUSE-SU-2026:10103-1"}],"prev":{"headline":"Sidekiq-cron is vulnerable to a cross-site scripting (xss) vulnerability via crafted URL","id":"CVE-2025-67202"},"products":["n/a"],"published":"2026-01-22","related":[{"cvss_score":7.5,"headline":"orjson does not limit recursion for deeply nested JSON documents","id":"CVE-2024-27454","kev_date_added":null,"published":"2024-02-26"}],"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":"SUSE","prefix":"SUSE"},{"class":"attribution","licence":"CC BY 4.0","name":"SUSE","prefix":"openSUSE"},{"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-01-22","vendors":["n/a"]},"summary":"Attackers can cause denial of service by submitting deeply nested JSON documents to the orjson.dumps function, which lacks recursion limits.","url":"https://insights.sbomify.com/CVE-2025-67221/"}