{"id":"CVE-2023-33958","aliases":["GHSA-rvrx-rrwh-r9p6","GO-2023-1831"],"url":"https://o3.security/vulnerability/CVE-2023-33958","summary":"Default `maxSignatureAttempts` in `notation verify` enables an endless data attack in notation","details":"notation is a CLI tool to sign and verify OCI artifacts and container images. An attacker who has compromised a registry and added a high number of signatures to an artifact can cause denial of service of services on the machine, if a user runs notation verify command on the same machine. The problem has been fixed in the release v1.0.0-rc.6. Users should upgrade their notation packages to v1.0.0-rc.6 or above. Users unable to upgrade may restrict container registries to a set of secure and trusted container registries.","published":"2023-06-06T18:13:16.926Z","modified":"2026-07-15T01:49:16.439478816Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/notaryproject/notation","fixedVersion":"1.0.0-rc.6"}],"fix":null,"references":[{"type":"WEB","url":"https://github.com/notaryproject/notation/releases/tag/v1.0.0-rc.6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/33xxx/CVE-2023-33958.json"},{"type":"ADVISORY","url":"https://github.com/notaryproject/notation/security/advisories/GHSA-rvrx-rrwh-r9p6"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-33958"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:16.439478816Z"}}