{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-121819 in the wild and no public exploit code.","exposure":"","fix":"No fix has been published for CVE-2026-121819 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-121819 is a medium-severity vulnerability in LY Corporation Armeria, published on 6 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-121819 and fix it if it is affected.\n\nWhat it is: CVE-2026-121819 is a medium-severity vulnerability in LY Corporation Armeria, published on 6 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-121819 in the wild and no public exploit code.\n\nAffected product: LY Corporation Armeria. 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-2026-121819/ (Markdown: https://insights.sbomify.com/CVE-2026-121819/index.md)","id":"CVE-2026-121819","markdown":"https://insights.sbomify.com/CVE-2026-121819/index.md","name":"CVE-2026-121819","record":{"aliases":["GHSA-m64h-m6r5-6jrx"],"analysis":null,"analysis_generated_by":null,"assigner":"LY-Corporation","cpe":[],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-59","name":"Improper Link Resolution Before File Access"}],"description":"A vulnerability has been identified in armeria-xds versions 1.40.0 through 1.42.0, where DataSourcePolicy checks filename containment without resolving symbolic links, allowing a compromised or semi-trusted xDS control plane to cause the xDS client to read files outside configured allowed root directories when a symbolic link inside an allowed directory points outside it. In deployments using a credential injector, header-compatible text secrets may be exposed to an attacker-observable upstream.","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":"A vulnerability has been identified in armeria-xds versions 1.40.0 through 1.42.0, where DataSourcePolicy checks filename containment withou","id":"CVE-2026-121819","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"A vulnerability has been identified in armeria-saml versions prior to 1.43.0, where the HTTP-Redirect binding decoder decompresses attacker-","id":"CVE-2026-121820"},"nickname":null,"packages":[],"prev":{"headline":"About Time Technologies｜Herowatch Go - Security Misconfiguration","id":"CVE-2026-121818"},"products":["Armeria"],"published":"2026-11-06","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":"2026-11-10","vendors":["LY Corporation"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-121819/"}