CVE-2026-39915

High

Description

TIM Flow before 26.0.6 contains a CRLF injection vulnerability that allows remote attackers to inject arbitrary HTTP headers and response body content by embedding unsanitized carriage return and line feed sequences in the rt URL parameter, which is reflected into Set-Cookie response headers. Attackers can craft malicious requests to induce authenticated users to execute arbitrary JavaScript in their browser context, enabling session token theft and account credential modification.

SeverityHigh
CVSS8.1
Exploit probability—
ProductTIM Flow
PublishedAug 24, 2026
First seenAug 24, 2026
Weakness typeCWE-113CWE-113

How to fix

Update
  • TIM Solutions TIM Flow26.0.6 or later

Affected products

ProductAffected versionsFixed in
TIM Solutions TIM Flowv < 26.0.626.0.6

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