Predictability Problems Affecting jbcs-http24-curl package, versions *


Severity

Recommended
low

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.03% (9th percentile)

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  • Snyk IDSNYK-RHEL9-JBCSHTTP24CURL-12667463
  • published13 Sept 2025
  • disclosed12 Sept 2025

Introduced: 12 Sep 2025

NewCVE-2025-10148  (opens in a new tab)
CWE-340  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:9 jbcs-http24-curl.

NVD Description

Note: Versions mentioned in the description apply only to the upstream jbcs-http24-curl package and not the jbcs-http24-curl package as distributed by RHEL. See How to fix? for RHEL:9 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1