CVE-2026-46431 - CERT CVE
ID CVE-2026-46431
Sažetak Algernon is a small self-contained pure-Go web server. Prior to 1.17.7, the SSE event server's Access-Control-Allow-Origin response header was hardcoded to the wildcard * regardless of the caller's Origin. Because EventSource does not preflight and does not send cookies, the wildcard is sufficient to let any third-party page the developer visits open a cross-origin EventSource to the SSE port and read the live filename stream from JavaScript. This vulnerability is fixed in 1.17.7.
Reference
CVSS
Base: 4.3
Impact: 1.4
Exploitability:2.8
Pristup
VektorSloženostAutentikacija
NETWORK LOW NONE
Impact
PovjerljivostCjelovitostDostupnost
LOW NONE NONE
CVSS vektor CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Zadnje važnije ažuriranje 26-05-2026 - 19:26
Objavljeno 26-05-2026 - 17:16