ST Engineering iDirect iDX/Evo iDX HTTP Request authorize response splitting

A vulnerability was determined in ST Engineering iDirect iDX and Evo iDX. This vulnerability affects unknown code of the file /authorize of the component HTTP Request Handler. Executing a manipulation of the argument Success can lead to http response splitting. It is possible to launch the attack remotely. The exploit has been publicly disclosed and may be utilized. The validated environment is an EOL X7 (or an un-modelled legacy Evolution 21.x), and current supported releases (X10, X11, Velocity 5.x+) have no validated evidence of impact. This vulnerability only affects products that are no longer supported by the maintainer.

Source published

21 Sep 2026 12:45:08 UTC

Source modified

14 Oct 2026 15:43:42 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

CVE Program Terms of Use

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CVSS 4.0 · 5.3 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

CVSS 3.1 · 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

CVSS 3.0 · 4.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

CVSS 2.0 · 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N/E:POC/RL:ND/RC:UR