{"id":"CVE-2023-28119","aliases":["GHSA-5mqj-xc49-246p","GO-2023-1664"],"url":"https://o3.security/vulnerability/CVE-2023-28119","summary":"crewjam/saml vulnerable to Denial Of Service Via Deflate Decompression Bomb","details":"The crewjam/saml go library contains a partial implementation of the SAML standard in golang. Prior to version 0.4.13, the package's use of `flate.NewReader` does not limit the size of the input. The user can pass more than 1 MB of data in the HTTP request to the processing functions, which will be decompressed server-side using the Deflate algorithm. Therefore, after repeating the same request multiple times, it is possible to achieve a reliable crash since the operating system kills the process. This issue is patched in version 0.4.13.\n","published":"2023-03-22T19:51:13.210Z","modified":"2026-08-07T08:12:29.562181977Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Go","name":"github.com/crewjam/saml","fixedVersion":"0.4.13"}],"fix":{"url":"https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021","label":"crewjam/saml@8e92368"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/28xxx/CVE-2023-28119.json"},{"type":"ADVISORY","url":"https://github.com/crewjam/saml/security/advisories/GHSA-5mqj-xc49-246p"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-28119"},{"type":"FIX","url":"https://github.com/crewjam/saml/commit/8e9236867d176ad6338c870a84e2039aef8a5021"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T08:12:29.562181977Z"}}