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🛡️ CVE-2025-10148 — curl

🟡 CVSS 5.3 — Medium ✅ No Known Exploit NVD
5.3
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity none, availability none.

Affected software

CVE-2025-10148 is recorded against 1 package.

  • curl (from 8.11.0 up to 8.16.0)

Timeline and source

Published on 12 September 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

curl.se
curl.se
hackerone.com
www.openwall.com
www.openwall.com
www.openwall.com

CVE-2025-10148 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity MEDIUM
CVSS Score 5.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2025-09-12
Updated 2026-08-20
Modified 2026-06-17

Affected Packages

Software From version Fixed in
curl 8.11.0 8.16.0

References

Issue Tracking, Third Party Advisory https://hackerone.com/reports/3330839
Mailing List, Patch, Third Party Advisory http://www.openwall.com/lists/oss-security/2025/09/10/2
Mailing List, 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

Vulnerability Monitoring

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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.