Use After Free Affecting libcurl package, versions [8.15.0,8.21.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.49% (39th percentile)

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  • Snyk IDSNYK-CONAN-LIBCURL-17808145
  • published3 Jul 2026
  • disclosed3 Jul 2026
  • creditUnknown

Introduced: 3 Jul 2026

NewCVE-2026-9080  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade libcurl to version 8.21.0 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free in the CURLMOPT_SOCKETFUNCTION callback when curl_easy_pause() is called. An attacker can execute arbitrary code or cause a denial of service by triggering the use of a dangling pointer after memory has been freed.

CVSS Base Scores

version 4.0
version 3.1