{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-122323 in the wild and no public exploit code.","exposure":"","fix":"No fix has been published for CVE-2026-122323 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-122323 is a high-severity vulnerability in kyverno, published on 5 Nov 2026."},"fix_prompt":"Check this codebase for CVE-2026-122323 and fix it if it is affected.\n\nWhat it is: CVE-2026-122323 is a high-severity vulnerability in kyverno, published on 5 Nov 2026. \nExploitation: There is no known exploitation of CVE-2026-122323 in the wild and no public exploit code.\n\nAffected product: kyverno. 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-2026-122323/ (Markdown: https://insights.sbomify.com/CVE-2026-122323/index.md)","id":"CVE-2026-122323","markdown":"https://insights.sbomify.com/CVE-2026-122323/index.md","name":"CVE-2026-122323","record":{"aliases":["GHSA-fr24-3hvf-393q","GHSA-vr6x-9fqf-j9vm"],"analysis":null,"analysis_generated_by":null,"assigner":"VulnCheck","cpe":[{"name":"Kyverno","product":"kyverno","vendor":"kyverno"}],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-409","name":"Improper Handling of Highly Compressed Data (Data Amplification)"}],"description":"Kyverno from 1.11.0 before 1.19.2 contains an unbounded decompression vulnerability in FetchSignatureBlob that allows attackers to exhaust memory by supplying highly compressed notary signature layers. Attackers who control registry referrers or signatures can publish small gzip layers that decompress beyond maxPayloadSize, causing admission controller OOM kills and denial of service.","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":"Kyverno 1.11.0 before 1.19.2 Memory Exhaustion via Notary Signature Decompression","id":"CVE-2026-122323","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"SplitPro through 2.1.6 Authorization Bypass via expense.getExpenseDetails","id":"CVE-2026-122324"},"nickname":null,"packages":[],"prev":{"headline":"Kyverno from 1.11.0 before 1.19.2 Memory Exhaustion via Notary Attestation Decompression","id":"CVE-2026-122322"},"products":["kyverno"],"published":"2026-11-05","related":[{"cvss_score":10,"headline":"Kyverno Cross-Namespace Privilege Escalation via Policy apiCall","id":"CVE-2026-22039","kev_date_added":null,"published":"2026-01-27"},{"cvss_score":9.8,"headline":"CVE-2026-4789","id":"CVE-2026-4789","kev_date_added":null,"published":"2026-03-30"},{"cvss_score":9.4,"headline":"Kyverno 1.17.0 before 1.19.2 Cross-Namespace Resource Overwrite via NamespacedMutatingPolicy","id":"CVE-2026-122303","kev_date_added":null,"published":"2026-11-05"},{"cvss_score":9.4,"headline":"Kyverno 1.17.0 before 1.19.2 Privilege Escalation via CleanupPolicy Context Loader","id":"CVE-2026-122304","kev_date_added":null,"published":"2026-11-05"},{"cvss_score":9.4,"headline":"Kyverno 1.19.1 before 1.19.2 Privilege Escalation via Policy apiCall urlPath","id":"CVE-2026-122310","kev_date_added":null,"published":"2026-11-05"},{"cvss_score":9.4,"headline":"Kyverno 1.16.0 before 1.19.2 Path Traversal in Namespaced CEL Policies via resource argument","id":"CVE-2026-122311","kev_date_added":null,"published":"2026-11-05"},{"cvss_score":9.4,"headline":"Kyverno 1.17.0 before 1.19.2 Cross-Namespace Privilege Escalation via NamespacedMutatingPolicy","id":"CVE-2026-122313","kev_date_added":null,"published":"2026-11-05"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-11-09","vendors":["kyverno"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-122323/"}