Bug 2512077 (CVE-2025-49506) - CVE-2025-49506 apr-util: Apache Portable Runtime Utility: Information disclosure via timing attack in password validation
Summary: CVE-2025-49506 apr-util: Apache Portable Runtime Utility: Information disclos...
Keywords:
Status: NEW
Alias: CVE-2025-49506
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2513917
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-06 14:41 UTC by OSIDB Bzimport
Modified: 2026-09-21 05:20 UTC (History)
6 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:66341 0 None None None 2026-09-10 08:58:27 UTC
Red Hat Product Errata RHSA-2026:66392 0 None None None 2026-09-10 12:28:44 UTC
Red Hat Product Errata RHSA-2026:69113 0 None None None 2026-09-21 05:20:58 UTC

Description OSIDB Bzimport 2026-08-06 14:41:46 UTC 
APR-util versions 1.6.3 (and earlier) function apr_password_validate() was not constant-time with regards to hashes or passwords comparisons, potentially leaking their content via a side channel timing attack particularly on platforms without crypt() such as  Windows, BeOS, NetWare, or Android.

Users are recommended to upgrade to version 1.6.4, which fixes this issue.
Comment 2 errata-xmlrpc 2026-09-10 08:58:26 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2026:66341 https://access.redhat.com/errata/RHSA-2026:66341
Comment 3 errata-xmlrpc 2026-09-10 12:28:42 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 10

Via RHSA-2026:66392 https://access.redhat.com/errata/RHSA-2026:66392
Comment 4 Jon Orris 2026-09-21 05:20:57 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 8

Via RHSA-2026:69113 https://access.redhat.com/errata/RHSA-2026:69113
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