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CVE-2025-10148 Detail

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
http://www.openwall.com/lists/oss-security/2025/09/10/2 CVE Mailing List  Patch  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2025/09/10/3 CVE Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2025/09/10/4 CVE Mailing List  Third Party Advisory 
https://curl.se/docs/CVE-2025-10148.html curl Patch  Vendor Advisory 
https://curl.se/docs/CVE-2025-10148.json curl Vendor Advisory 
https://hackerone.com/reports/3330839 curl Issue Tracking  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-10148
NVD Published Date:
09/12/2025
NVD Last Modified:
01/20/2026
Source:
curl