{"id":"CVE-2021-32816","state":"PUBLISHED","title":"Regular expression Denial of Service in ProtonMail","description":"ProtonMail Web Client is the official AngularJS web client for the ProtonMail secure email service. ProtonMail Web Client before version 3.16.60 has a regular expression denial-of-service vulnerability. This was fixed in commit 6687fb. There is a full report available in the referenced GHSL-2021-027.","publishedAt":"2021-05-14T17:35:10.000Z","updatedAt":"2024-08-03T23:33:55.906Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["ProtonMail WebClient"],"affected":[{"vendor":"ProtonMail","product":"WebClient","versions":[{"version":"< 3.16.60","status":"affected"}]}],"references":["https://securitylab.github.com/advisories/GHSL-2021-027-redos-ProtonMail/","https://github.com/ProtonMail/WebClient/commit/6687fbb867ef872c96cf4fde68cb6e9c58d3fddc"],"weaknesses":["CWE-400"],"ingestedAt":"2026-10-29T19:48:33.225Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/32xxx/CVE-2021-32816.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-32816","state":"PUBLISHED","datePublished":"2021-05-14T17:35:10.000Z","dateUpdated":"2024-08-03T23:33:55.906Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2021-05-12T00:00:00.000Z"},"containers":{"cna":{"title":"Regular expression Denial of Service in ProtonMail","descriptions":[{"lang":"en","value":"ProtonMail Web Client is the official AngularJS web client for the ProtonMail secure email service. ProtonMail Web Client before version 3.16.60 has a regular expression denial-of-service vulnerability. This was fixed in commit 6687fb. There is a full report available in the referenced GHSL-2021-027."}],"affected":[{"vendor":"ProtonMail","product":"WebClient","versions":[{"version":"< 3.16.60","status":"affected"}]}],"references":[{"url":"https://securitylab.github.com/advisories/GHSL-2021-027-redos-ProtonMail/","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/ProtonMail/WebClient/commit/6687fbb867ef872c96cf4fde68cb6e9c58d3fddc","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-400","description":"CWE-400 Uncontrolled Resource Consumption","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","dateUpdated":"2021-05-14T17:35:10.000Z","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa"},"source":{"advisory":"GHSL-2021-027","discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security-advisories@github.com","ID":"CVE-2021-32816","STATE":"PUBLIC","TITLE":"Regular expression Denial of Service in ProtonMail"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"WebClient","version":{"version_data":[{"version_value":"< 3.16.60"}]}}]},"vendor_name":"ProtonMail"}]}},"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"ProtonMail Web Client is the official AngularJS web client for the ProtonMail secure email service. ProtonMail Web Client before version 3.16.60 has a regular expression denial-of-service vulnerability. This was fixed in commit 6687fb. There is a full report available in the referenced GHSL-2021-027."}]},"generator":{"engine":"Vulnogram 0.0.9"},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-400 Uncontrolled Resource Consumption"}]}]},"references":{"reference_data":[{"name":"https://securitylab.github.com/advisories/GHSL-2021-027-redos-ProtonMail/","refsource":"CONFIRM","url":"https://securitylab.github.com/advisories/GHSL-2021-027-redos-ProtonMail/"},{"name":"https://github.com/ProtonMail/WebClient/commit/6687fbb867ef872c96cf4fde68cb6e9c58d3fddc","refsource":"MISC","url":"https://github.com/ProtonMail/WebClient/commit/6687fbb867ef872c96cf4fde68cb6e9c58d3fddc"}]},"source":{"advisory":"GHSL-2021-027","discovery":"UNKNOWN"}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://securitylab.github.com/advisories/GHSL-2021-027-redos-ProtonMail/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://github.com/ProtonMail/WebClient/commit/6687fbb867ef872c96cf4fde68cb6e9c58d3fddc","tags":["x_refsource_MISC","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T23:33:55.906Z"}}]}}}