{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-10846 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-10846 is a high-severity vulnerability in NLnet Labs ldns, published on 10 Jun 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-2026-10846 and fix it if it is affected.\n\nWhat it is: CVE-2026-10846 is a high-severity vulnerability in NLnet Labs ldns, published on 10 Jun 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-2026-10846 in the wild and no public exploit code.\n\nAffected product: NLnet Labs ldns. 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-2026-10846/ (Markdown: https://insights.sbomify.com/CVE-2026-10846/index.md)","id":"CVE-2026-10846","markdown":"https://insights.sbomify.com/CVE-2026-10846/index.md","name":"CVE-2026-10846","record":{"aliases":["ALSA-2026:49520","ALSA-2026:49836","ALSA-2026:50108","AZL-89715","CLSA-2026-1784215324","CLSA-2026-1784986614","DEBIAN-CVE-2026-10846","GHSA-x77r-8q36-8529","OESA-2026-2788","RHSA-2026:49520","RHSA-2026:49836","RHSA-2026:50108","RHSA-2026:53402","RHSA-2026:54244","RHSA-2026:54254","RHSA-2026:54377","RLSA-2026:49520","RLSA-2026:49836","RLSA-2026:50108","SUSE-SU-2026:22167-1","SUSE-SU-2026:2461-1","SUSE-SU-2026:2462-1","UBUNTU-CVE-2026-10846","USN-8449-1","openSUSE-SU-2026:10998-1","openSUSE-SU-2026:21093-1"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_modify","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"DNS resolver library","requires_auth":"none","summary":"Attackers can poison DNS responses in applications using ldns over UDP due to insufficient verification of response origin and content.","user_interaction":"not_required","vuln_class":"other"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"NLnet Labs","cpe":[{"product":"ldns","vendor":"nlnetlabs"}],"cvss":{"score":8.2,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-346","name":"Origin Validation Error"}],"description":"NLnet Labs ldns 1.2.0 up to and including versions 1.9.0, when used in applications as (stub) resolver over UDP, lacks matching the query destination address and port with the response source address and port. Furthermore not the query ID, neither the question of the query is matched with that of the response. This makes applications, that use ldns for (stub) resolver functionality over UDP, vulnerable for off-path poisoning attacks. The drill tool, which is shipped with ldns, suffers from this vulnerability.","ecosystems":["AlmaLinux:10","AlmaLinux:8","AlmaLinux:9","Red Hat:enterprise_linux:10.2","Red Hat:enterprise_linux:8::appstream","Red Hat:enterprise_linux:8::crb","Red Hat:enterprise_linux:9::appstream","Red Hat:enterprise_linux:9::crb","Red Hat:enterprise_linux_eus:10.0","Red Hat:rhel_e4s:9.2::appstream","Red Hat:rhel_e4s:9.4::appstream","Red Hat:rhel_eus:9.6::appstream","Red Hat:rhel_eus:9.6::crb","Rocky Linux:10","Rocky Linux:8","Rocky Linux:9","SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS","SUSE:Linux Enterprise High Performance Computing 15 SP5-ESPOS","SUSE:Linux Enterprise High Performance Computing 15 SP5-LTSS","SUSE:Linux Enterprise Module for Basesystem 15 SP7","SUSE:Linux Enterprise Module for Development Tools 15 SP7","SUSE:Linux Enterprise Module for Package Hub 15 SP7","SUSE:Linux Enterprise Server 15 SP4-LTSS","SUSE:Linux Enterprise Server 15 SP5-LTSS","SUSE:Linux Enterprise Server 15 SP6-LTSS","SUSE:Linux Enterprise Server 16.0","SUSE:Linux Enterprise Server for SAP Applications 15 SP4","SUSE:Linux Enterprise Server for SAP Applications 15 SP5","SUSE:Linux Enterprise Server for SAP Applications 15 SP6","SUSE:Linux Enterprise Server for SAP applications 16.0","openSUSE:Leap 16.0","openSUSE:Tumbleweed"],"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":"Insufficient verification that responses belong to a query","id":"CVE-2026-10846","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"other","year":"2026"},"n_packages":89,"n_references":1,"next":{"headline":"Local Privilege Escalation vulnerability in Check Point Identity Agent Full for Windows OS","id":"CVE-2026-10847"},"packages":[{"ecosystem":"AlmaLinux:10","fixed":["1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"ldns","purl":"pkg:rpm/almalinux/ldns","source":"ALSA-2026:49836"},{"ecosystem":"AlmaLinux:10","fixed":["1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"ldns-devel","purl":"pkg:rpm/almalinux/ldns-devel","source":"ALSA-2026:49836"},{"ecosystem":"AlmaLinux:10","fixed":["1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"ldns-doc","purl":"pkg:rpm/almalinux/ldns-doc","source":"ALSA-2026:49836"},{"ecosystem":"AlmaLinux:10","fixed":["1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"ldns-utils","purl":"pkg:rpm/almalinux/ldns-utils","source":"ALSA-2026:49836"},{"ecosystem":"AlmaLinux:10","fixed":["1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"perl-ldns","purl":"pkg:rpm/almalinux/perl-ldns","source":"ALSA-2026:49836"},{"ecosystem":"AlmaLinux:10","fixed":["1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"python3-ldns","purl":"pkg:rpm/almalinux/python3-ldns","source":"ALSA-2026:49836"},{"ecosystem":"AlmaLinux:8","fixed":["1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns","purl":"pkg:rpm/almalinux/ldns","source":"ALSA-2026:49520"},{"ecosystem":"AlmaLinux:8","fixed":["1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns-devel","purl":"pkg:rpm/almalinux/ldns-devel","source":"ALSA-2026:49520"},{"ecosystem":"AlmaLinux:8","fixed":["1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns-doc","purl":"pkg:rpm/almalinux/ldns-doc","source":"ALSA-2026:49520"},{"ecosystem":"AlmaLinux:8","fixed":["1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns-utils","purl":"pkg:rpm/almalinux/ldns-utils","source":"ALSA-2026:49520"},{"ecosystem":"AlmaLinux:8","fixed":["1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"perl-ldns","purl":"pkg:rpm/almalinux/perl-ldns","source":"ALSA-2026:49520"},{"ecosystem":"AlmaLinux:8","fixed":["1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3-ldns","purl":"pkg:rpm/almalinux/python3-ldns","source":"ALSA-2026:49520"},{"ecosystem":"AlmaLinux:9","fixed":["1.7.1-12.el9_8.1"],"introduced":["0"],"last_affected":[],"package":"ldns","purl":"pkg:rpm/almalinux/ldns","source":"ALSA-2026:50108"},{"ecosystem":"AlmaLinux:9","fixed":["1.7.1-12.el9_8.1"],"introduced":["0"],"last_affected":[],"package":"ldns-devel","purl":"pkg:rpm/almalinux/ldns-devel","source":"ALSA-2026:50108"},{"ecosystem":"AlmaLinux:9","fixed":["1.7.1-12.el9_8.1"],"introduced":["0"],"last_affected":[],"package":"ldns-doc","purl":"pkg:rpm/almalinux/ldns-doc","source":"ALSA-2026:50108"},{"ecosystem":"AlmaLinux:9","fixed":["1.7.1-12.el9_8.1"],"introduced":["0"],"last_affected":[],"package":"ldns-utils","purl":"pkg:rpm/almalinux/ldns-utils","source":"ALSA-2026:50108"},{"ecosystem":"AlmaLinux:9","fixed":["1.7.1-12.el9_8.1"],"introduced":["0"],"last_affected":[],"package":"perl-ldns","purl":"pkg:rpm/almalinux/perl-ldns","source":"ALSA-2026:50108"},{"ecosystem":"AlmaLinux:9","fixed":["1.7.1-12.el9_8.1"],"introduced":["0"],"last_affected":[],"package":"python3-ldns","purl":"pkg:rpm/almalinux/python3-ldns","source":"ALSA-2026:50108"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"ldns","purl":"pkg:rpm/redhat/ldns","source":"RHSA-2026:49836"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"ldns-debuginfo","purl":"pkg:rpm/redhat/ldns-debuginfo","source":"RHSA-2026:49836"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"ldns-debugsource","purl":"pkg:rpm/redhat/ldns-debugsource","source":"RHSA-2026:49836"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"ldns-devel","purl":"pkg:rpm/redhat/ldns-devel","source":"RHSA-2026:49836"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"ldns-doc","purl":"pkg:rpm/redhat/ldns-doc","source":"RHSA-2026:49836"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"ldns-utils","purl":"pkg:rpm/redhat/ldns-utils","source":"RHSA-2026:49836"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"ldns-utils-debuginfo","purl":"pkg:rpm/redhat/ldns-utils-debuginfo","source":"RHSA-2026:49836"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"perl-ldns","purl":"pkg:rpm/redhat/perl-ldns","source":"RHSA-2026:49836"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"perl-ldns-debuginfo","purl":"pkg:rpm/redhat/perl-ldns-debuginfo","source":"RHSA-2026:49836"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"python3-ldns","purl":"pkg:rpm/redhat/python3-ldns","source":"RHSA-2026:49836"},{"ecosystem":"Red Hat:enterprise_linux:10.2","fixed":["0:1.8.3-18.el10_2.1"],"introduced":["0"],"last_affected":[],"package":"python3-ldns-debuginfo","purl":"pkg:rpm/redhat/python3-ldns-debuginfo","source":"RHSA-2026:49836"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns","purl":"pkg:rpm/redhat/ldns","source":"RHSA-2026:49520"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns-debuginfo","purl":"pkg:rpm/redhat/ldns-debuginfo","source":"RHSA-2026:49520"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns-debugsource","purl":"pkg:rpm/redhat/ldns-debugsource","source":"RHSA-2026:49520"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns-utils-debuginfo","purl":"pkg:rpm/redhat/ldns-utils-debuginfo","source":"RHSA-2026:49520"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"perl-ldns-debuginfo","purl":"pkg:rpm/redhat/perl-ldns-debuginfo","source":"RHSA-2026:49520"},{"ecosystem":"Red Hat:enterprise_linux:8::appstream","fixed":["0:1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"python3-ldns-debuginfo","purl":"pkg:rpm/redhat/python3-ldns-debuginfo","source":"RHSA-2026:49520"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns-debuginfo","purl":"pkg:rpm/redhat/ldns-debuginfo","source":"RHSA-2026:49520"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns-debugsource","purl":"pkg:rpm/redhat/ldns-debugsource","source":"RHSA-2026:49520"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns-devel","purl":"pkg:rpm/redhat/ldns-devel","source":"RHSA-2026:49520"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns-doc","purl":"pkg:rpm/redhat/ldns-doc","source":"RHSA-2026:49520"},{"ecosystem":"Red Hat:enterprise_linux:8::crb","fixed":["0:1.7.0-23.el8_10"],"introduced":["0"],"last_affected":[],"package":"ldns-utils","purl":"pkg:rpm/redhat/ldns-utils","source":"RHSA-2026:49520"}],"prev":{"headline":"IBM WebSphere Application Server is affected by an authentication bypass vulnerability","id":"CVE-2026-10845"},"products":["ldns"],"published":"2026-06-10","related":[{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2017-1000231","kev_date_added":null,"published":"2017-11-17"},{"cvss_score":9.8,"headline":"Use after free in n/a","id":"CVE-2017-1000232","kev_date_added":null,"published":"2017-11-17"},{"cvss_score":7.5,"headline":"Information disclosure in n/a","id":"CVE-2020-19861","kev_date_added":null,"published":"2022-01-21"},{"cvss_score":6.8,"headline":"Memory corruption in n/a","id":"CVE-2011-3581","kev_date_added":null,"published":"2011-11-04"},{"cvss_score":6.5,"headline":"Information disclosure in n/a","id":"CVE-2020-19860","kev_date_added":null,"published":"2022-01-21"},{"cvss_score":6.4,"headline":"Memory corruption in n/a","id":"CVE-2009-1086","kev_date_added":null,"published":"2009-03-25"}],"sources":[{"class":"attribution","licence":"MIT","name":"AlmaLinux","prefix":"ALSA"},{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"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":"2026-06-10","vendors":["NLnet Labs"]},"summary":"Attackers can poison DNS responses in applications using ldns over UDP due to insufficient verification of response origin and content.","url":"https://insights.sbomify.com/CVE-2026-10846/"}