CVE-2025-49506

7.5 highEPSS 0.4%

High (7.5) in apache apr-util. EPSS 0.4% chance of exploitation in the next 30 days.

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.

Severity

CVSS 3.1

7.5 high

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 31% of CVEs (scores of 2026-10-31)
CWE: CWE-208
Published: 2026-08-06
Modified: 2026-09-29
Record from: the NVD, synced 2026-10-19

Affected

apache:apr-util

References

https://lists.apache.org/thread/2v8o3bj9pb7lfcr57bdnjg9xfkj04mg5
http://www.openwall.com/lists/oss-security/2026/08/06/8

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