Timing Attack Affecting apr-util package, versions [,1.6.5)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.38% (31st percentile)

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  • Snyk IDSNYK-CONAN-APRUTIL-20074783
  • published24 Sept 2026
  • disclosed6 Aug 2026
  • creditUnknown

Introduced: 6 Aug 2026

CVE-2025-49506  (opens in a new tab)
CWE-208  (opens in a new tab)

How to fix?

Upgrade apr-util to version 1.6.5 or higher.

Overview

Affected versions of this package are vulnerable to Timing Attack in the apr_password_validate function. An attacker can obtain sensitive information by measuring the time taken to compare password hashes, especially on platforms lacking the crypt function such as Windows, BeOS, NetWare, or Android.

CVSS Base Scores

version 4.0
version 3.1