{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-101278 exists.","fix":"No fix has been published for CVE-2026-101278 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-101278 is a medium-severity vulnerability in Trusted Domain Project OpenDMARC, published on 29 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-101278 and fix it if it is affected.\n\nWhat it is: CVE-2026-101278 is a medium-severity vulnerability in Trusted Domain Project OpenDMARC, published on 29 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-101278 exists.\n\nAffected product: Trusted Domain Project OpenDMARC. 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-2026-101278/ (Markdown: https://insights.sbomify.com/CVE-2026-101278/index.md)","id":"CVE-2026-101278","markdown":"https://insights.sbomify.com/CVE-2026-101278/index.md","name":"CVE-2026-101278","record":{"aliases":["DEBIAN-CVE-2026-101278","GHSA-f9p6-hxqg-x7r4","UBUNTU-CVE-2026-101278"],"analysis":{"component_type":"server_software","fix_type":"no_fix_stated","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenDMARC mail filter","requires_auth":"low_privilege","summary":"Remote attackers can bypass origin validation in OpenDMARC's PSL wildcard handler, potentially spoofing email domains.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-346","name":"Origin Validation Error"},{"id":"CWE-345","name":"Insufficient Verification of Data Authenticity"}],"description":"A weakness has been identified in Trusted Domain Project OpenDMARC up to 1.4.2. This affects the function opendmarc_get_tld of the file libopendmarc/opendmarc_tld.c : of the component PSL Wildcard Handler. Executing a manipulation can lead to origin validation error. The attack may be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Trusted Domain Project OpenDMARC PSL Wildcard opendmarc_tld.c : opendmarc_get_tld origin validation","id":"CVE-2026-101278","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"Trusted Domain Project OpenDMARC opendmarc_policy.c integer overflow","id":"CVE-2026-101279"},"packages":[],"prev":{"headline":"Trusted Domain Project OpenDKIM Tag Tokenizer dkim.c dkim_process_set less trusted source","id":"CVE-2026-101277"},"products":["OpenDMARC"],"published":"2026-09-29","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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-01","vendors":["Trusted Domain Project"]},"summary":"Remote attackers can bypass origin validation in OpenDMARC's PSL wildcard handler, potentially spoofing email domains.","url":"https://insights.sbomify.com/CVE-2026-101278/"}