{"answers":{"affected":"6 open source packages ship an affected version, including io.micronaut:micronaut-inject.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44242 exists.","fix":"Upgrade io.micronaut:micronaut-inject to a fixed version for your release line: 3.8.14, 3.10.6 or 4.10.22.","what":"CVE-2026-44242 is a low-severity denial of service vulnerability in micronaut-projects micronaut-core, published on 12 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-2026-44242 and fix it if it is affected.\n\nWhat it is: CVE-2026-44242 is a low-severity denial of service vulnerability in micronaut-projects micronaut-core, published on 12 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-44242 exists.\n\nAffected packages and fixed versions:\n- io.micronaut:micronaut-inject (Maven): affected all versions; fixed in 3.8.14\n- io.micronaut:micronaut-inject (Maven): affected all versions; fixed in 3.8.14\n- io.micronaut:micronaut-inject (Maven): affected from 3.10.0; fixed in 3.10.6\n- io.micronaut:micronaut-inject (Maven): affected from 3.10.0; fixed in 3.10.6\n- io.micronaut:micronaut-inject (Maven): affected from 4.10.0; fixed in 4.10.22\n- io.micronaut:micronaut-inject (Maven): affected from 4.10.0; fixed in 4.10.22\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-2026-44242/ (Markdown: https://insights.sbomify.com/CVE-2026-44242/index.md)","id":"CVE-2026-44242","markdown":"https://insights.sbomify.com/CVE-2026-44242/index.md","name":"CVE-2026-44242","record":{"aliases":["ECHO-78e3-aff5-2f5b","GHSA-3rfq-4wpf-qqw3"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":true,"product_category":"Java web framework","requires_auth":"none","summary":"An unauthenticated attacker can exhaust heap memory and cause denial of service by sending requests with unique Accept-Language headers in applications using ResourceBundleMessageSource.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":3.7,"severity":"low","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"description":"Micronaut Framework is a JVM-based full stack Java framework designed for building modular, easily testable JVM applications. Prior to 4.10.22, the bundleCache is keyed by (Locale, baseName) where the locale originates from the HTTP Accept-Language header. In applications that explicitly register a ResourceBundleMessageSource bean and serve HTML error responses, an unauthenticated attacker can exhaust heap memory by sending requests with large numbers of unique Accept-Language values, each causing a new entry in the unbounded bundleCache. This vulnerability is fixed in 4.10.22.","ecosystems":["Maven"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Micronaut has Unbounded `bundleCache` in `ResourceBundleMessageSource` that Allows Memory Exhaustion via `Accept-Language` Header","id":"CVE-2026-44242","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":6,"n_references":1,"next":{"headline":"GitPython: Path traversal in GitPython reference APIs allows arbitrary file write and delete outside the repository","id":"CVE-2026-44243"},"packages":[{"ecosystem":"Maven","fixed":["3.8.14"],"introduced":["0"],"last_affected":[],"package":"io.micronaut:micronaut-inject","purl":null,"source":"GHSA-3rfq-4wpf-qqw3"},{"ecosystem":"Maven","fixed":["3.8.14"],"introduced":["0"],"last_affected":[],"package":"io.micronaut:micronaut-inject","purl":"pkg:maven/io.micronaut/micronaut-inject","source":"GHSA-3rfq-4wpf-qqw3"},{"ecosystem":"Maven","fixed":["3.10.6"],"introduced":["3.10.0"],"last_affected":[],"package":"io.micronaut:micronaut-inject","purl":null,"source":"GHSA-3rfq-4wpf-qqw3"},{"ecosystem":"Maven","fixed":["3.10.6"],"introduced":["3.10.0"],"last_affected":[],"package":"io.micronaut:micronaut-inject","purl":"pkg:maven/io.micronaut/micronaut-inject","source":"GHSA-3rfq-4wpf-qqw3"},{"ecosystem":"Maven","fixed":["4.10.22"],"introduced":["4.10.0"],"last_affected":[],"package":"io.micronaut:micronaut-inject","purl":null,"source":"GHSA-3rfq-4wpf-qqw3"},{"ecosystem":"Maven","fixed":["4.10.22"],"introduced":["4.10.0"],"last_affected":[],"package":"io.micronaut:micronaut-inject","purl":"pkg:maven/io.micronaut/micronaut-inject","source":"GHSA-3rfq-4wpf-qqw3"}],"prev":{"headline":"Micronaut has unbounded `formattersCache` in `TimeConverterRegistrar` that Allows Memory Exhaustion via `Accept-Language` Header","id":"CVE-2026-44241"},"products":["micronaut-core"],"published":"2026-05-12","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"2026-05-13","vendors":["micronaut-projects"]},"summary":"An unauthenticated attacker can exhaust heap memory and cause denial of service by sending requests with unique Accept-Language headers in applications using ResourceBundleMessageSource.","url":"https://insights.sbomify.com/CVE-2026-44242/"}