CVE-2025-49506 — Apache Portable Runtime Utility: apr_password_validate() vulnerable to timing attack

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Portable Runtime Utility	affected 1.2.0 through 1.6.3

CWE

CWE-208

References

https://lists.apache.org/thread/2v8o3bj9pb7lfcr57bdnjg9xfkj04mg5

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/08/06/8