{"answers":{"affected":"It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55862 exists.","fix":"Upgrade to a fixed version.","what":"CVE-2026-55862 is a medium-severity denial of service vulnerability in pupnp, published on 16 Oct 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-2026-55862 and fix it if it is affected.\n\nWhat it is: CVE-2026-55862 is a medium-severity denial of service vulnerability in pupnp, published on 16 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55862 exists.\n\nAffected product: pupnp. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-55862/ (Markdown: https://insights.sbomify.com/CVE-2026-55862/index.md)","id":"CVE-2026-55862","markdown":"https://insights.sbomify.com/CVE-2026-55862/index.md","name":"CVE-2026-55862","record":{"aliases":["DEBIAN-CVE-2026-55862","GHSA-25cx-xv8x-j247","UBUNTU-CVE-2026-55862"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"UPnP SDK library","requires_auth":"none","summary":"An unauthenticated attacker can crash the UPnP service by sending deeply nested XML, causing a stack overflow in recursive DOM functions.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"pupnp","vendor":"pupnp_project"}],"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-674","name":"Uncontrolled Recursion"}],"description":"pupnp is an SDK for development of UPnP device and control point applications. Prior to 2.0.0, multiple ixml DOM traversal functions process deeply nested XML with unbounded recursion. The iterative XML parser accepts the document, but ixmlPrintDomTreeRecursive in ixml/src/ixml.c and ixmlNode_getElementsByTagNameRecursive, ixmlNode_getElementsByTagNameNSRecursive, ixmlNode_cloneNodeTreeRecursive, and ixmlNode_isAncestor in ixml/src/node.c recurse over firstChild and nextSibling links. An unauthenticated peer on the local network can supply deeply nested XML through a SOAP request, exhaust a service thread's stack, and crash the UPnP service. This is an incomplete-fix case for CVE-2021-28302 because its remediation converted ixmlNode_free but left these traversal paths recursive. This issue is fixed in 2.0.0.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"pupnp: Incomplete fix for CVE-2021-28302: recursive DOM functions cause stack overflow","id":"CVE-2026-55862","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"motionEye: Missing authentication on ActionHandler allows unauthenticated camera action execution","id":"CVE-2026-55863"},"packages":[],"prev":{"headline":"org.mariadb:r2dbc-mariadb vulnerable to cleartext password disclosure to a man-in-the-middle server (clear-text auth plugins not gated on a secure transport)","id":"CVE-2026-55860"},"products":["pupnp"],"published":"2026-10-16","related":[{"cvss_score":7.6,"headline":"DNS rebinding in pupnp","id":"CVE-2021-29462","kev_date_added":null,"published":"2021-04-20"},{"cvss_score":7.5,"headline":"pupnp: NULL pointer dereference in ixmlNode_compare crashes on non-namespaced attributes","id":"CVE-2026-57486","kev_date_added":null,"published":"2026-10-16"},{"cvss_score":7.5,"headline":"libupnp chunked HTTP bodies can bypass g_maxContentLength and be fully buffered","id":"CVE-2026-57487","kev_date_added":null,"published":"2026-10-16"},{"cvss_score":7.5,"headline":"pupnp: Denial of service via blocking DNS resolution in parse_uri()/GENA callback parsing","id":"CVE-2026-77630","kev_date_added":null,"published":"2026-10-16"},{"cvss_score":7.5,"headline":"Denial of service in n/a","id":"CVE-2021-28302","kev_date_added":null,"published":"2021-03-12"},{"cvss_score":7.1,"headline":"pupnp: Integer truncation in HTTP Content-Length parsing enables request smuggling","id":"CVE-2026-57488","kev_date_added":null,"published":"2026-10-16"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-16","vendors":["pupnp"]},"summary":"An unauthenticated attacker can crash the UPnP service by sending deeply nested XML, causing a stack overflow in recursive DOM functions.","url":"https://insights.sbomify.com/CVE-2026-55862/"}