{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-13204 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-13204 is a high-severity denial of service vulnerability in ISC BIND 9, published on 22 Jul 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-2026-13204 and fix it if it is affected.\n\nWhat it is: CVE-2026-13204 is a high-severity denial of service vulnerability in ISC BIND 9, published on 22 Jul 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-2026-13204 in the wild and no public exploit code.\n\nAffected product: ISC BIND 9. 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-2026-13204/ (Markdown: https://insights.sbomify.com/CVE-2026-13204/index.md)","id":"CVE-2026-13204","markdown":"https://insights.sbomify.com/CVE-2026-13204/index.md","name":"CVE-2026-13204","record":{"aliases":["ALPINE-CVE-2026-13204","AZL-93117","BELL-CVE-2026-13204","CLSA-2026-1785267075","CLSA-2026-1785309449","CLSA-2026-1785309455","DEBIAN-CVE-2026-13204","ECHO-fcc4-5d8a-b7af","GHSA-89q8-qc36-7m58","MGASA-2026-0399","MINI-9m48-xqx8-fhpg","MINI-crm8-pqm4-mq49","MINI-mfc7-32fg-cfrp","UBUNTU-CVE-2026-13204","USN-8696-1"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"DNS server software","requires_auth":"none","summary":"An attacker can cause a denial of service in BIND by triggering an assertion failure when validating domains with mixed NSEC and NSEC3 records.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"isc","cpe":[],"cvss":{"score":7.5,"severity":"high","source":"cna","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-617","name":"Reachable Assertion"}],"description":"If a provably insecure domain is covered by both an NSEC and NSEC3 record at the parent, and there exist an RRSIG for only one of these types, then BIND may exit unexpectedly with an assertion while validating this proof.\nThis issue affects BIND 9 versions 9.11.0 through 9.18.50, 9.20.0 through 9.20.24, 9.21.0 through 9.21.23, 9.11.3-S1 through 9.18.50-S1, and 9.20.9-S1 through 9.20.24-S1.","ecosystems":[],"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":"Unexpected exit in certain situations with NSEC and NSEC3 both present","id":"CVE-2026-13204","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":"Multiple Vulnerabilities in Zyxel's WAH7601 - OS Command Injection","id":"CVE-2026-13206"},"packages":[],"prev":{"headline":"Live Composer \u003c= 2.1.19 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'custom_id' Shortcode Attribute","id":"CVE-2026-13203"},"products":["BIND 9"],"published":"2026-07-22","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-22","vendors":["ISC"]},"summary":"An attacker can cause a denial of service in BIND by triggering an assertion failure when validating domains with mixed NSEC and NSEC3 records.","url":"https://insights.sbomify.com/CVE-2026-13204/"}