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Vulnerability record · CVE-2025-61258 · published 9 December 2025

CVE-2025-61258: Outsystems platform server http request smuggling vulnerability

Outsystems · Platform Server

Outsystems Platform Server 11.18.1.37828 allows attackers to cause a denial of service via a crafted content-length value mismatching the body length. NOTE: the Supplier indicates that they are unable to reproduce this.

7.5 CVSS 3.1 High EPSS 0.63% · top 51.7% CWE-444 · HTTP request smuggling
7.5CVSS 3.1 base score
0.63%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 1 tagged exploit
24 Aug 2026Last modified by NVD

Description

Outsystems Platform Server 11.18.1.37828 allows attackers to cause a denial of service via a crafted content-length value mismatching the body length. NOTE: the Supplier indicates that they are unable to reproduce this.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://balwurk.com/ Not Applicable
https://balwurk.github.io/CVE-2025-61258/ ExploitThird Party Advisory
https://ghostline.neocities.org/CVE-2025-61258/
https://www.outsystems.com/ Product

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2025-61258), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.