{"id":"CVE-2026-54135","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-54135","summary":"AirSane is a SANE frontend, and a scanner server that supports Apple's AirScan protocol. Versions prior to 0.4.12 have a vulnerability in the custom HTTP server implementation of AirSane…","details":"AirSane is a SANE frontend, and a scanner server that supports Apple's AirScan protocol. Versions prior to 0.4.12 have a vulnerability in the custom HTTP server implementation of AirSane that allows a remote unauthenticated attacker to cause a Denial of Service (DoS) via memory exhaustion (OOM). In httpserver.cpp, the HttpServer::Request::content function reads the Content-Length header and directly passes this value to std::string::resize() without any upper-bound validation or safe parsing. An attacker can send an HTTP POST request with an artificially large Content-Length value. This forces the daemon to attempt allocating gigabytes of memory, resulting in a std::bad_alloc exception and immediately crashing the AirSane process. Additionally, providing non-numeric characters in the Content-Length header leads to undefined behavior (NaN to integer conversion) due to the lack of error handling during header parsing. Version 0.4.12 patches the issue.","published":"2026-09-11T20:17:14.330","modified":"2026-09-11T20:17:14.330","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/SimulPiscator/AirSane/commit/129cc3bf7258251a0a694dee7741285b59d88f9f","label":"SimulPiscator/AirSane@129cc3b"},"references":[{"type":"WEB","url":"https://github.com/SimulPiscator/AirSane/commit/129cc3bf7258251a0a694dee7741285b59d88f9f"},{"type":"WEB","url":"https://github.com/SimulPiscator/AirSane/releases/tag/v0.4.12"},{"type":"WEB","url":"https://github.com/SimulPiscator/AirSane/security/advisories/GHSA-p5hv-3m79-452q"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-11T20:17:14.330"}}