{"action":"Upgrade grpc to 1.53.2 or later.","affected":[{"fixed":"1.53.2","introduced":"0"},{"fixed":"1.54.3","introduced":"1.54.0"},{"fixed":"1.55.2","introduced":"1.55.0"},{"fixed":"1.56.2","introduced":"1.56.0"}],"component":"grpc","cve_ids":["CVE-2023-33953"],"ecosystem":"RubyGems","epss":0.00479,"exploited":false,"fixed_versions":["1.53.2","1.54.3","1.55.2","1.56.2"],"ghsa_id":"GHSA-496j-2rq6-j6cc","id":"tcs_01M5KEGJPNBC4E2SBD1K60QMCV","modified_at":"2026-07-07T17:57:05.612219692Z","published_at":"2023-08-09T15:30:15Z","references":["https://osv.dev/vulnerability/GHSA-496j-2rq6-j6cc","https://nvd.nist.gov/vuln/detail/CVE-2023-33953","https://cloud.google.com/support/bulletins#gcp-2023-022","https://github.com/advisories/GHSA-496j-2rq6-j6cc","https://github.com/rubysec/ruby-advisory-db/blob/master/gems/grpc/CVE-2023-33953.yml","https://security.snyk.io/vuln/SNYK-RUBY-GRPC-5834442"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-496j-2rq6-j6cc#RubyGems/grpc","url":"https://osv.dev/vulnerability/GHSA-496j-2rq6-j6cc"}],"summary":"Excessive Iteration in gRPC"}