CVE-2026-39915
TIM Flow < 26.0.6 CRLF Injection via rt Parameter and access_token Cookie
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 and access_token cookie, which are 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.
INFO
Published Date :
Aug. 24, 2026, 2:14 p.m.
Last Modified :
Aug. 24, 2026, 2:14 p.m.
Remotely Exploit :
Yes !
Source :
VulnCheck
Affected Products
The following products are affected by CVE-2026-39915
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 | ||||
| CVSS 4.0 | HIGH | 83251b91-4cc7-4094-a5c7-464a1b83ea10 |
Solution
- Update TIM Flow to version 26.0.6 or later.
- Sanitize carriage return and line feed sequences.
- Validate input for the rt URL parameter.
- Validate input for the access_token cookie.
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CVE-2026-39915 vulnerability anywhere in the article.