{"answers":{"affected":"1 open source package ship an affected version, including devalue.","exploited":"There is no known exploitation of CVE-2026-123568 in the wild and no public exploit code.","exposure":"","fix":"Upgrade devalue to 5.6.3 or later.","what":"CVE-2026-123568 is a low-severity vulnerability in sveltejs devalue, published on 8 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-123568 and fix it if it is affected.\n\nWhat it is: CVE-2026-123568 is a low-severity vulnerability in sveltejs devalue, published on 8 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-123568 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- devalue (npm): affected all versions; fixed in 5.6.3\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-2026-123568/ (Markdown: https://insights.sbomify.com/CVE-2026-123568/index.md)","id":"CVE-2026-123568","markdown":"https://insights.sbomify.com/CVE-2026-123568/index.md","name":"CVE-2026-123568","record":{"aliases":["GHSA-7g65-3hpp-6gg5","GHSA-8qm3-746x-r74r"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[],"cvss":{"score":2.1,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N","version":"4.0"},"cwes":[{"id":"CWE-1321","name":"Improperly Controlled Modification of Object Prototype Attributes"}],"description":"Sveltejs devalue before 5.6.3 contains a prototype pollution vulnerability that allows attackers to alter object prototypes by supplying untrusted data to uneval. When the generated code is later evaluated, it creates objects with polluted prototypes, producing output data whose shape differs from the original input.","ecosystems":["npm"],"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":"Sveltejs devalue before 5.6.3 Prototype Pollution via uneval Output","id":"CVE-2026-123568","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"npm","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":2,"next":{"headline":"Devalue before 5.6.3 Denial of Service via Sparse Array Serialization","id":"CVE-2026-123569"},"nickname":null,"packages":[{"ecosystem":"npm","fixed":["5.6.3"],"introduced":["0"],"last_affected":[],"package":"devalue","purl":null,"source":"GHSA-8qm3-746x-r74r"}],"prev":{"headline":"Sveltejs devalue before 5.6.4 Prototype Injection via parse and unflatten","id":"CVE-2026-123567"},"products":["devalue"],"published":"2026-11-08","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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-11-12","vendors":["sveltejs"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-123568/"}