{"cve":"CVE-2021-40532","nvd":{"published":"2021-09-06T21:15:07.413","modified":"2026-06-17T04:07:06.230","status":"Modified","description":"Telegram Web K Alpha before 0.7.2 mishandles the characters in a document extension.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":[],"references":["https://github.com/morethanwords/tweb/commit/f224e459c36eb96b2cf9dba559a48b1f08d23330","https://github.com/morethanwords/tweb/commit/f224e459c36eb96b2cf9dba559a48b1f08d23330"],"products":["telegram:web_k_alpha"],"source":"nvd","synced_at":"2026-10-19T21:21:57.125947417+00:00"},"epss":{"cve":"CVE-2021-40532","score":0.01252,"percentile":0.69434,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}