{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-5950 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-5950 is a medium-severity denial of service vulnerability in Isc Bind, published on 20 May 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-2026-5950 and fix it if it is affected.\n\nWhat it is: CVE-2026-5950 is a medium-severity denial of service vulnerability in Isc Bind, published on 20 May 2026. 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-2026-5950 in the wild and no public exploit code.\n\nAffected product: Isc Bind. 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-2026-5950/ (Markdown: https://insights.sbomify.com/CVE-2026-5950/index.md)","id":"CVE-2026-5950","markdown":"https://insights.sbomify.com/CVE-2026-5950/index.md","name":"CVE-2026-5950","record":{"aliases":["ALPINE-CVE-2026-5950","AZL-87102","BELL-CVE-2026-5950","DEBIAN-CVE-2026-5950","ECHO-42ec-02de-982e","GHSA-2pjm-rchf-gxmp","MINI-7wqc-g28p-5mrr","UBUNTU-CVE-2026-5950"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"DNS resolver software","requires_auth":"none","summary":"Remote attackers can cause severe resource exhaustion in BIND 9 resolver via unbounded resend loops, requiring patches to prevent service disruption.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"isc","cpe":[{"product":"bind","vendor":"isc"}],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-606","name":"Unchecked Input for Loop Condition"}],"description":"An unbounded resend loop vulnerability exists in the BIND 9 resolver state machine during bad-server handling, enabling a remote unauthenticated attacker to cause severe resource exhaustion by sending queries that trigger specific retry conditions.\nThis issue affects BIND 9 versions 9.18.36 through 9.18.48, 9.20.8 through 9.20.22, 9.21.7 through 9.21.21, 9.18.36-S1 through 9.18.48-S1, and 9.20.9-S1 through 9.20.22-S1.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":"2026-06-14","github_poc":1,"max_poc_stars":1,"metasploit":0,"nuclei":0,"refs":[{"date":"2026-06-14T00:28:02Z","kind":"github_poc","ref":"https://github.com/billybaraja/cve-2026-5950-bind9-resolver-dos","stars":1,"title":"Defensive research notes for CVE-2026-5950, a BIND 9 resolver DoS vulnerability credited to Billy Baraja (BielraX)."}],"tier":"poc_unverified"},"has_fix":true,"headline":"Unbounded resend loop in BIND 9 resolver","id":"CVE-2026-5950","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"isc:bind","products":["isc:bind"],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"Incorrect Authorization in GitLab","id":"CVE-2026-5952"},"packages":[],"prev":{"headline":"SIG(0) validation during query flood may lead to undefined behavior","id":"CVE-2026-5947"},"products":["BIND 9"],"published":"2026-05-20","related":[{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2008-0122","kev_date_added":null,"published":"2008-01-16"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2001-0010","kev_date_added":null,"published":"2001-05-07"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2001-0011","kev_date_added":null,"published":"2001-05-07"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2001-0013","kev_date_added":null,"published":"2001-05-07"},{"cvss_score":10,"headline":"Memory corruption in n/a","id":"CVE-2000-1029","kev_date_added":null,"published":"2000-11-29"},{"cvss_score":10,"headline":"Denial of service in n/a","id":"CVE-1999-0837","kev_date_added":null,"published":"2000-01-04"},{"cvss_score":8.5,"headline":"Denial of service in n/a","id":"CVE-2012-1667","kev_date_added":null,"published":"2012-06-05"}],"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)"},{"class":"open","licence":"CC0","name":"PoC-in-GitHub"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-20","vendors":["ISC"]},"summary":"Remote attackers can cause severe resource exhaustion in BIND 9 resolver via unbounded resend loops, requiring patches to prevent service disruption.","url":"https://insights.sbomify.com/CVE-2026-5950/"}