CVE-2025-49506
Last modified
CVE-2025-49506 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.29% chance of exploitation in the next 30 days.
Description
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apache | Apr-Util | >= 1.2.0, < 1.6.4 |
References
- https://lists.apache.org/thread/2v8o3bj9pb7lfcr57bdnjg9xfkj04mg5Mailing List, Vendor Advisory
- https://www.openwall.com/lists/oss-security/2026/08/06/8Mailing List, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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