{"answers":{"affected":"2 open source packages ship an affected version, including knative.dev/pkg.","exploited":"There is no known exploitation of CVE-2026-54462 in the wild and no public exploit code.","fix":"Upgrade knative.dev/pkg to 0.0.0-20260531000007-52dbd5ece63f or later.","what":"CVE-2026-54462 is a medium-severity vulnerability in knative pkg, published on 27 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-54462 and fix it if it is affected.\n\nWhat it is: CVE-2026-54462 is a medium-severity vulnerability in knative pkg, published on 27 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-54462 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- knative.dev/pkg (Go): affected all versions; fixed in 0.0.0-20260531000007-52dbd5ece63f\n- knative.dev/pkg (Go): affected all versions; fixed in 0.0.0-20260531000007-52dbd5ece63f\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-2026-54462/ (Markdown: https://insights.sbomify.com/CVE-2026-54462/index.md)","id":"CVE-2026-54462","markdown":"https://insights.sbomify.com/CVE-2026-54462/index.md","name":"CVE-2026-54462","record":{"aliases":["ECHO-b911-ff02-ef59","GHSA-2hw4-c9m4-f2fj","GHSA-j8gc-gxpv-w8rg"],"analysis":null,"analysis_generated_by":null,"assigner":"GitHub_M","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"Knative pkg provides common packages shared across Knative repositories. Prior to 0.0.0-20260531000007-52dbd5ece63f, the knative.dev/pkg/webhook admissionHandler in webhook/admission.go decodes an attacker-supplied AdmissionReview through json.NewDecoder(io.TeeReader(r.Body, \u0026bodyBuffer)) under an http.HandlerFunc without an http.MaxBytesReader or equivalent body-size limit. A pod-network client can send one oversized POST to an admission webhook, causing the decoder and bodyBuffer to retain amplified copies of the request until the controller pod exhausts memory and is OOM-killed. Every downstream consumer using the shared webhook server inherits the vulnerable behavior, including Knative, Tekton, KEDA, Sigstore policy-controller, and Kpack. For consumers configured with failurePolicy=Fail, loss of the controller can interrupt admission; with failurePolicy=Ignore, the affected webhook is unavailable while other admissions continue. This issue is fixed in version 0.0.0-20260531000007-52dbd5ece63f.","ecosystems":["Go"],"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":"knative.dev/pkg admission webhooks allow unbounded request-body memory exhaustion","id":"CVE-2026-54462","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":null,"year":"2026"},"n_packages":2,"n_references":3,"next":{"headline":"websocket-driver: Memory exhaustion via abuse of protocol length headers","id":"CVE-2026-54463"},"packages":[{"ecosystem":"Go","fixed":["0.0.0-20260531000007-52dbd5ece63f"],"introduced":["0"],"last_affected":[],"package":"knative.dev/pkg","purl":null,"source":"GHSA-2hw4-c9m4-f2fj"},{"ecosystem":"Go","fixed":["0.0.0-20260531000007-52dbd5ece63f"],"introduced":["0"],"last_affected":[],"package":"knative.dev/pkg","purl":"pkg:golang/knative.dev/pkg","source":"GHSA-2hw4-c9m4-f2fj"}],"prev":{"headline":"Habitica: Regex Injection / ReDoS in Member Search","id":"CVE-2026-54461"},"products":["pkg"],"published":"2026-10-27","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":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-27","vendors":["knative"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-54462/"}