{"apiVersion":"1.0","identifier":"CVE-2026-73258","description":"Mongoose is an embedded web server and network library. Prior to 7.22, a remote attacker can place a lone carriage return or line feed in multipart input processed by mg_http_next_multipart() in src/http.c. The loops comparing s[b] and s[b + 1], and s[h2] and s[h2 + 1], use an incorrect AND condition and stop when either character resembles part of a CRLF terminator. This truncates headers, filenames, or boundaries and can cause an application to accept dangerous content after seeing a misleading Content-Type value. This issue is fixed in version 7.22.","publishedAt":"2026-08-20T18:16:47","lastModifiedAt":"2026-08-20T19:17:01","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73258","cvssScore":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","epssProbability":0.00267,"riskScore":0.67,"affectedProduct":"Mongoose","affectedVersions":"<7.22","vulnerabilityType":"Library","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-73258","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-73258","en":"https://www.redsauce.net/en/cves/CVE-2026-73258","fr":"https://www.redsauce.net/fr/cves/CVE-2026-73258","pt":"https://www.redsauce.net/pt/cves/CVE-2026-73258","de":"https://www.redsauce.net/de/cves/CVE-2026-73258","sk":"https://www.redsauce.net/sk/cves/CVE-2026-73258","el":"https://www.redsauce.net/el/cves/CVE-2026-73258"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-73258"}}