{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-77121 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-77121 is a medium-severity denial of service vulnerability in Sonatype Nexus Repository Manager, published on 2 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-2026-77121 and fix it if it is affected.\n\nWhat it is: CVE-2026-77121 is a medium-severity denial of service vulnerability in Sonatype Nexus Repository Manager, published on 2 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-77121 in the wild and no public exploit code.\n\nAffected product: Sonatype Nexus Repository Manager. 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-2026-77121/ (Markdown: https://insights.sbomify.com/CVE-2026-77121/index.md)","id":"CVE-2026-77121","markdown":"https://insights.sbomify.com/CVE-2026-77121/index.md","name":"CVE-2026-77121","record":{"aliases":["GHSA-747h-p664-p8p7","MINI-jf22-xf7m-xpm5","MINI-p5h4-7xjg-3qr2"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Maven repository manager","requires_auth":"low_privilege","summary":"Authenticated users can cause permanent denial of service in a specific Maven repository by uploading oversized POM metadata, requiring admin intervention to fix.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Sonatype","cpe":[{"product":"nexus_repository_manager","vendor":"sonatype"}],"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:N/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"A user account with permission to deploy artifacts to a hosted Maven repository could upload a POM file containing an oversized metadata field. This causes future attempts to list or browse that repository's components to permanently fail until an administrator repairs the underlying data. Only the targeted repository is affected; other repositories and overall server health remain unaffected.","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":"Nexus Repository 3 - Denial of Service via Unbounded Maven POM Metadata Fields","id":"CVE-2026-77121","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"sonatype:nexus_repository_manager","products":["sonatype:nexus_repository_manager"],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Missing authorization in Nexus Repository 3","id":"CVE-2026-77122"},"packages":[],"prev":{"headline":"Command injection in PowerLogic T300","id":"CVE-2026-77120"},"products":["Nexus Repository 3"],"published":"2026-09-02","related":[{"cvss_score":9.8,"headline":"Sonatype Nexus Repository Manager Incorrect Access Control","id":"CVE-2019-7238","kev_date_added":"2021-12-10","published":"2019-03-21"},{"cvss_score":9.8,"headline":"Hardcoded credentials in n/a","id":"CVE-2019-9629","kev_date_added":null,"published":"2019-07-08"},{"cvss_score":9.8,"headline":"Hardcoded credentials in n/a","id":"CVE-2017-17717","kev_date_added":null,"published":"2017-12-17"},{"cvss_score":9.4,"headline":"Nexus Repository 3 - Authenticated Remote Code Execution via Task Property Injection","id":"CVE-2026-3199","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":9.2,"headline":"Nexus Repository 3 - Hardcoded Credential in Internal Database Component","id":"CVE-2026-5189","kev_date_added":null,"published":"2026-04-15"},{"cvss_score":8.9,"headline":"Nexus Repository 3 - Wildcard Privilege Update Self-Escalation to Administrator","id":"CVE-2026-17601","kev_date_added":null,"published":"2026-08-07"},{"cvss_score":8.8,"headline":"Code injection in n/a","id":"CVE-2020-15871","kev_date_added":null,"published":"2020-07-31"}],"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-02","vendors":["Sonatype"]},"summary":"Authenticated users can cause permanent denial of service in a specific Maven repository by uploading oversized POM metadata, requiring admin intervention to fix.","url":"https://insights.sbomify.com/CVE-2026-77121/"}