CVEvulnerability
CVE-2025-10148
5.3 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2025-09-12
- Last modified
- 2026-10-19
- Assigner
- 2499f714-1537-4658-8207-48ae4bb9eae9
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weaknesses
- CWE-340
Description
curl's WebSocket code did not update the 32-bit mask pattern for each new
outgoing frame as the specification says. Instead it used a fixed mask that
persisted and was used throughout the entire connection.
A predictable mask pattern allows for a malicious server to induce traffic
between the two communicating parties that could be interpreted by an involved
proxy (configured or transparent) as genuine, real, HTTP traffic with content
and thereby poison its cache. That cached poisoned content could then be
served to all users of that proxy.
Affected configurations
• haxx curl (>= 8.11.0 < 8.16.0)
Related
Weakness · CWE (1)
- CWE-340 Generation of Predictable Numbers or Identifiers weakness
References
- https://curl.se/docs/CVE-2025-10148.html Patch, Vendor Advisory
- https://curl.se/docs/CVE-2025-10148.json Vendor Advisory
- https://hackerone.com/reports/3330839 Issue Tracking, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2025/09/10/2 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2025/09/10/3 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2025/09/10/4 Mailing List, Third Party Advisory