{"id":"GHSA-qcxq-75wr-5cm8","aliases":[],"status":"published","title":"ldap3_proto has LDAP Filter stack exhaustion","description":"### Impact\nLDAP queries are not validated for depth, which can cause the parser (both PEG and ASN) to exhaust the stack. This *may* cause a denial of service in applications that process queries.\n\n### Workarounds\nN/A\n\n### References\nRelated to GHSA-r5fr-9gmv-jggh","severity":{"version":"4.0","score":8.7,"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","level":"high","from":"ghsa"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-674","CWE-770"],"published":"2026-05-06T23:39:47Z","modified":"2026-08-14T19:30:08Z","fixes":[{"ecosystem":"crates.io","package":"ldap3_proto","fixed_in":["0.7.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"ldap3_proto","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.7.1"}]}]},{"source":"osv","ecosystem":"crates.io","package":"ldap3_proto","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.7.1"}]}]}],"references":[{"url":"https://github.com/kanidm/ldap3/security/advisories/GHSA-qcxq-75wr-5cm8","tags":["web"]},{"url":"https://github.com/advisories/GHSA-r5fr-9gmv-jggh","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-qcxq-75wr-5cm8"},{"url":"https://github.com/kanidm/ldap3","tags":["package"]}],"sources":{"ghsa":[{"id":"GHSA-qcxq-75wr-5cm8","title":"ldap3_proto has LDAP Filter stack exhaustion","description":"### Impact\nLDAP queries are not validated for depth, which can cause the parser (both PEG and ASN) to exhaust the stack. This *may* cause a denial of service in applications that process queries.\n\n### Workarounds\nN/A\n\n### References\nRelated to GHSA-r5fr-9gmv-jggh","status":"published","published":"2026-05-06T23:39:47Z","modified":"2026-08-14T19:22:28Z","cvss":[{"version":"4.0","score":8.7,"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","level":"high"}],"cwes":["CWE-674","CWE-770"],"updated_at":"2026-11-02T14:41:01.23108Z"}],"osv":[{"id":"GHSA-qcxq-75wr-5cm8","title":"ldap3_proto has LDAP Filter stack exhaustion","description":"### Impact\nLDAP queries are not validated for depth, which can cause the parser (both PEG and ASN) to exhaust the stack. This *may* cause a denial of service in applications that process queries.\n\n### Workarounds\nN/A\n\n### References\nRelated to GHSA-r5fr-9gmv-jggh","status":"published","published":"2026-05-06T23:39:47Z","modified":"2026-08-14T19:30:08.115903092Z","cvss":[{"version":"4.0","score":8.7,"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","level":"high"}],"cwes":["CWE-674","CWE-770"],"updated_at":"2026-11-02T15:46:54.40888Z"}]}}