{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-90820 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-90820 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-90820 is a medium-severity missing authorization vulnerability in a2aproject a2a-java, published on 14 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-2026-90820 and fix it if it is affected.\n\nWhat it is: CVE-2026-90820 is a medium-severity missing authorization vulnerability in a2aproject a2a-java, published on 14 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-2026-90820 in the wild and no public exploit code.\n\nAffected product: a2aproject a2a-java. 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-2026-90820/ (Markdown: https://insights.sbomify.com/CVE-2026-90820/index.md)","id":"CVE-2026-90820","markdown":"https://insights.sbomify.com/CVE-2026-90820/index.md","name":"CVE-2026-90820","record":{"aliases":["GHSA-vmmr-97qx-h8c4"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Java SDK library","requires_auth":"low_privilege","summary":"Remote attackers can bypass authorization checks in the onListTasks function to access task data without proper permissions.","user_interaction":"not_required","vuln_class":"missing_authorization"},"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:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X","version":"4.0"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"},{"id":"CWE-862","name":"Missing Authorization"}],"description":"A security vulnerability has been detected in a2aproject a2a-java 1.2.0. The impacted element is the function AuthorizationRequestHandlerDecorator.onListTasks of the file server-common/src/main/java/org/a2aproject/sdk/server/requesthandlers/AuthorizationRequestHandlerDecorator.java. Such manipulation leads to missing authorization. The attack can be launched remotely. Upgrading to version 1.3.0 is sufficient to resolve this issue. The name of the patch is e9a1abf9c90c02b16d17293afdc3cc2f555d63a6. The affected component should be upgraded.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Missing authorization in a2a-java","id":"CVE-2026-90820","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Crafty Controller","id":"CVE-2026-90821"},"packages":[],"prev":{"headline":"A weakness has been identified in a2aproject a2a-java 1.2.0.","id":"CVE-2026-90819"},"products":["a2a-java"],"published":"2026-09-14","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-15","vendors":["a2aproject"]},"summary":"Remote attackers can bypass authorization checks in the onListTasks function to access task data without proper permissions.","url":"https://insights.sbomify.com/CVE-2026-90820/"}