DEBIAN-CVE-2025-10148

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2025-10148
Published: 12 Sept 2025, 06:15
Last modified:11 Jul 2026, 21:00

Vulnerability Summary

Overall Risk (default)
low
21/100
CVSS Score
5.3 MEDIUM
3.1 (osv_debian)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

12 Sept 2025, 06:15
Published
Vulnerability first disclosed
11 Jul 2026, 21:00
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Affected Systems

  • debian•curl

    all | < 7.88.1-10+deb12u15 | < 8.14.1-2+deb13u1 | < 8.16.0-1

References (1)