{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-32816 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-32816 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-32816 is a medium-severity denial of service vulnerability in ProtonMail WebClient, published on 14 May 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-32816 and fix it if it is affected.\n\nWhat it is: CVE-2021-32816 is a medium-severity denial of service vulnerability in ProtonMail WebClient, published on 14 May 2021. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-32816 in the wild and no public exploit code.\n\nAffected product: ProtonMail WebClient. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2021-32816/ (Markdown: https://insights.sbomify.com/CVE-2021-32816/index.md)","id":"CVE-2021-32816","markdown":"https://insights.sbomify.com/CVE-2021-32816/index.md","name":"CVE-2021-32816","record":{"aliases":["GHSA-h97j-5ccr-wj2x"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"ProtonMail Web Client","requires_auth":"none","summary":"An attacker can cause a denial of service in the ProtonMail web client by exploiting a regular expression vulnerability.","user_interaction":"required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"protonmail","vendor":"protonmail"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-400","name":"Uncontrolled Resource Consumption"}],"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.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Regular expression Denial of Service in ProtonMail","id":"CVE-2021-32816","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2021"},"n_packages":0,"n_references":2,"next":{"headline":"File disclosure in express-hbs","id":"CVE-2021-32817"},"packages":[],"prev":{"headline":"Denial of service due to assertion failure in crwimage_int.cpp","id":"CVE-2021-32815"},"products":["WebClient"],"published":"2021-05-14","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["ProtonMail"]},"summary":"An attacker can cause a denial of service in the ProtonMail web client by exploiting a regular expression vulnerability.","url":"https://insights.sbomify.com/CVE-2021-32816/"}