{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-122267 in the wild and no public exploit code.","exposure":"","fix":"No fix has been published for CVE-2026-122267 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-122267 is a high-severity vulnerability in Chainguard MinIO, published on 5 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-122267 and fix it if it is affected.\n\nWhat it is: CVE-2026-122267 is a high-severity vulnerability in Chainguard MinIO, published on 5 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-122267 in the wild and no public exploit code.\n\nAffected product: Chainguard MinIO. 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-2026-122267/ (Markdown: https://insights.sbomify.com/CVE-2026-122267/index.md)","id":"CVE-2026-122267","markdown":"https://insights.sbomify.com/CVE-2026-122267/index.md","name":"CVE-2026-122267","record":{"aliases":["GHSA-48rv-pgqh-mhjg"],"analysis":null,"analysis_generated_by":null,"assigner":"chainguard","cpe":[],"cvss":{"score":8.8,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-347","name":"Improper Verification of Cryptographic Signature"}],"description":"MinIO Signature V4 verification before RELEASE.2026-09-22T19-25-18Z accepts unsigned x-amz-* headers, letting a presigned PUT URL be escalated into a cross-bucket read.","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":"MinIO Signature V4 verification before RELEASE.2026-09-22T19-25-18Z accepts unsigned x-amz-* headers, letting a presigned PUT URL be escalat","id":"CVE-2026-122267","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Windows Kernel Transaction Manager Information Disclosure Vulnerability","id":"CVE-2026-122297"},"nickname":null,"packages":[],"prev":{"headline":"Improper isolation of shared resources in aws-network-policy-agent in Amazon EKS","id":"CVE-2026-122266"},"products":["MinIO"],"published":"2026-11-05","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-11-10","vendors":["Chainguard"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-122267/"}