ST Engineering iDirect Evolution/Velocity WebServer Evolution HTTP Request /authorize success response splitting

CVSS Meta Temp Score
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CTI Interest Score
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3.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in ST Engineering iDirect Evolution and Velocity WebServer Evolution. This issue affects some unknown processing of the file /authorize of the component HTTP Request Handler. The manipulation of the argument Success leads to response splitting. This vulnerability is documented as CVE-2026-94216. The attack can be initiated remotely. Additionally, an exploit exists. 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.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in ST Engineering iDirect Evolution and Velocity WebServer Evolution. This issue affects some unknown processing of the file /authorize of the component HTTP Request Handler. The manipulation of the argument success with an unknown input leads to a response splitting vulnerability. Using CWE to declare the problem leads to CWE-113. The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or incorrectly neutralizes CR and LF characters before the data is included in outgoing HTTP headers. Impacted is integrity.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-94216. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Technical details as well as a public exploit are known.

The exploit is available at github.com. It is declared as proof-of-concept. 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.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • ST Engineering iDirect Evolution up to 21.0.3.3
  • ST Engineering iDirect Velocity up to 3.3.2.3

Productinfo

Type

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 3.9

VulDB Base Score: 4.3
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Response splitting
CWE: CWE-113 / CWE-93 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/21/2026 Advisory disclosed
09/21/2026 +0 days VulDB entry created
09/30/2026 +9 days VulDB entry last update

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2026-94216 (🔒)
GCVE (CVE): GCVE-0-2026-94216
GCVE (VulDB): GCVE-100-408071
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/21/2026 07:59
Updated: 09/30/2026 20:40
Changes: 09/21/2026 07:59 (59), 09/30/2026 20:40 (9)
Complete: 🔍
Submitter: ST4R0003
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #894247: ST Engineering iDirect Evolution/Velocity WebServer Evolution 14.0.3-21.0.3.3; Velocity 1.6.1.8-3.3.2.3 HTTP Response Header Injection / Open Redirect (by ST4R0003)

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