CVE-2025-49506
Apache Portable Runtime Utility: apr_password_validate() vulnerable to timing attack
CVE-2025-49506 is fixed in 26 products on 1 platform, first by libaprutil1-dbd-mysql 1.6.3-3ubuntu3.1, released August 6, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.5
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0038
32nd percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| apr-util · Debian 12.15 (bookworm) | 1.6.3-1+deb12u1 | DEBIAN-CVE-2025-49506 | Aug 13, 2026 |
| apr-util · Debian 13.5 (trixie) | 1.6.3-3+deb13u1 | DEBIAN-CVE-2025-49506 | Aug 13, 2026 |
| apr-util · Debian 14 | 1.6.4-1 | DEBIAN-CVE-2025-49506 | Aug 13, 2026 |
| apr-util · RHEL 10 | 1.6.3-23.el10_2.1 | RHSA-2026:66392 | Aug 6, 2026 |
| apr-util · RHEL 8 | 0:1.6.1-9.el8_10.1 | RHSA-2026:69113 | Sep 22, 2026 |
| apr-util · RHEL 9 | 0:1.6.1-23.el9_8.1 | RHSA-2026:66341 | Sep 13, 2026 |
| apr-util · almalinux 10 | 1.6.3-23.el10_2.1 | ALSA-2026:66392 | Sep 10, 2026 |
| apr-util · almalinux 8 | 1.6.1-9.el8_10.1 | ALSA-2026:69113 | Sep 21, 2026 |
| apr-util · almalinux 9 | 1.6.1-23.el9_8.1 | ALSA-2026:66341 | Sep 10, 2026 |
| apr-util · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util · ol 10 | 0:1.6.3-23.el10_2.1 | ELSA-2026-66392-0 | Sep 10, 2026 |
| apr-util · ol 8 | 0:1.6.1-9.el8_10.1 | ELSA-2026-69113 | Sep 23, 2026 |
| apr-util · ol 9 | 0:1.6.1-23.el9_8.1 | ELSA-2026-66341-0 | Sep 10, 2026 |
| apr-util · opensuse-leap 16.0 | 1.6.3-160000.3.1 | OPENSUSE-SU-2026:21672-1 | Aug 28, 2026 |
| apr-util · rocky 10 | 0:1.6.3-23.el10_2.1 | RLSA-2026:66392 | Sep 11, 2026 |
| apr-util · rocky 8 | 0:1.6.1-9.el8_10.1 | RLSA-2026:69113 | Sep 22, 2026 |
| apr-util · rocky 9 | 0:1.6.1-23.el9_8.1 | RLSA-2026:66341 | Sep 11, 2026 |
| apr-util · sles 15.6 | 1.6.1-150600.27.3.1 | SUSE-SU-2026:3938-1 | Sep 3, 2026 |
| apr-util · sles 15.7 | 1.6.1-150600.27.3.1 | SUSE-SU-2026:3938-1 | Sep 3, 2026 |
| apr-util · sles 16.0 | 1.6.3-160000.3.1 | SUSE-SU-2026:23551-1 | Aug 28, 2026 |
| apr-util-bdb · RHEL 8 | 0:1.6.1-9.el8_10.1 | RHSA-2026:69113 | Sep 22, 2026 |
| apr-util-bdb · RHEL 9 | 0:1.6.1-23.el9_8.1 | RHSA-2026:66341 | Sep 13, 2026 |
| apr-util-bdb · almalinux 8 | 1.6.1-9.el8_10.1 | ALSA-2026:69113 | Sep 21, 2026 |
| apr-util-bdb · almalinux 9 | 1.6.1-23.el9_8.1 | ALSA-2026:66341 | Sep 10, 2026 |
| apr-util-bdb · ol 8 | 0:1.6.1-9.el8_10.1 | ELSA-2026-69113 | Sep 23, 2026 |
| apr-util-bdb · ol 9 | 0:1.6.1-23.el9_8.1 | ELSA-2026-66341-0 | Sep 10, 2026 |
| apr-util-debuginfo · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-debugsource · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-devel · RHEL 8 | 0:1.6.1-9.el8_10.1 | RHSA-2026:69113 | Sep 22, 2026 |
| apr-util-devel · RHEL 9 | 0:1.6.1-23.el9_8.1 | RHSA-2026:66341 | Sep 13, 2026 |
| apr-util-devel · almalinux 10 | 1.6.3-23.el10_2.1 | ALSA-2026:66392 | Sep 10, 2026 |
| apr-util-devel · almalinux 8 | 1.6.1-9.el8_10.1 | ALSA-2026:69113 | Sep 21, 2026 |
| apr-util-devel · almalinux 9 | 1.6.1-23.el9_8.1 | ALSA-2026:66341 | Sep 10, 2026 |
| apr-util-devel · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-devel · ol 10 | 0:1.6.3-23.el10_2.1 | ELSA-2026-66392-0 | Sep 10, 2026 |
| apr-util-devel · ol 8 | 0:1.6.1-9.el8_10.1 | ELSA-2026-69113 | Sep 23, 2026 |
| apr-util-devel · ol 9 | 0:1.6.1-23.el9_8.1 | ELSA-2026-66341-0 | Sep 10, 2026 |
| apr-util-ldap · RHEL 8 | 0:1.6.1-9.el8_10.1 | RHSA-2026:69113 | Sep 22, 2026 |
| apr-util-ldap · RHEL 9 | 0:1.6.1-23.el9_8.1 | RHSA-2026:66341 | Sep 13, 2026 |
| apr-util-ldap · almalinux 10 | 1.6.3-23.el10_2.1 | ALSA-2026:66392 | Sep 10, 2026 |
| apr-util-ldap · almalinux 8 | 1.6.1-9.el8_10.1 | ALSA-2026:69113 | Sep 21, 2026 |
| apr-util-ldap · almalinux 9 | 1.6.1-23.el9_8.1 | ALSA-2026:66341 | Sep 10, 2026 |
| apr-util-ldap · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-ldap · ol 10 | 0:1.6.3-23.el10_2.1 | ELSA-2026-66392-0 | Sep 10, 2026 |
| apr-util-ldap · ol 8 | 0:1.6.1-9.el8_10.1 | ELSA-2026-69113 | Sep 23, 2026 |
| apr-util-ldap · ol 9 | 0:1.6.1-23.el9_8.1 | ELSA-2026-66341-0 | Sep 10, 2026 |
| apr-util-ldap-debuginfo · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-lmdb · almalinux 10 | 1.6.3-23.el10_2.1 | ALSA-2026:66392 | Sep 10, 2026 |
| apr-util-lmdb · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-lmdb · ol 10 | 0:1.6.3-23.el10_2.1 | ELSA-2026-66392-0 | Sep 10, 2026 |
| apr-util-lmdb-debuginfo · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-mysql · RHEL 8 | 0:1.6.1-9.el8_10.1 | RHSA-2026:69113 | Sep 22, 2026 |
| apr-util-mysql · RHEL 9 | 0:1.6.1-23.el9_8.1 | RHSA-2026:66341 | Sep 13, 2026 |
| apr-util-mysql · almalinux 10 | 1.6.3-23.el10_2.1 | ALSA-2026:66392 | Sep 10, 2026 |
| apr-util-mysql · almalinux 8 | 1.6.1-9.el8_10.1 | ALSA-2026:69113 | Sep 21, 2026 |
| apr-util-mysql · almalinux 9 | 1.6.1-23.el9_8.1 | ALSA-2026:66341 | Sep 10, 2026 |
| apr-util-mysql · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-mysql · ol 10 | 0:1.6.3-23.el10_2.1 | ELSA-2026-66392-0 | Sep 10, 2026 |
| apr-util-mysql · ol 8 | 0:1.6.1-9.el8_10.1 | ELSA-2026-69113 | Sep 23, 2026 |
| apr-util-mysql · ol 9 | 0:1.6.1-23.el9_8.1 | ELSA-2026-66341-0 | Sep 10, 2026 |
| apr-util-mysql-debuginfo · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-odbc · RHEL 8 | 0:1.6.1-9.el8_10.1 | RHSA-2026:69113 | Sep 22, 2026 |
| apr-util-odbc · RHEL 9 | 0:1.6.1-23.el9_8.1 | RHSA-2026:66341 | Sep 13, 2026 |
| apr-util-odbc · almalinux 10 | 1.6.3-23.el10_2.1 | ALSA-2026:66392 | Sep 10, 2026 |
| apr-util-odbc · almalinux 8 | 1.6.1-9.el8_10.1 | ALSA-2026:69113 | Sep 21, 2026 |
| apr-util-odbc · almalinux 9 | 1.6.1-23.el9_8.1 | ALSA-2026:66341 | Sep 10, 2026 |
| apr-util-odbc · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-odbc · ol 10 | 0:1.6.3-23.el10_2.1 | ELSA-2026-66392-0 | Sep 10, 2026 |
| apr-util-odbc · ol 8 | 0:1.6.1-9.el8_10.1 | ELSA-2026-69113 | Sep 23, 2026 |
| apr-util-odbc · ol 9 | 0:1.6.1-23.el9_8.1 | ELSA-2026-66341-0 | Sep 10, 2026 |
| apr-util-odbc-debuginfo · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-openssl · RHEL 8 | 0:1.6.1-9.el8_10.1 | RHSA-2026:69113 | Sep 22, 2026 |
| apr-util-openssl · RHEL 9 | 0:1.6.1-23.el9_8.1 | RHSA-2026:66341 | Sep 13, 2026 |
| apr-util-openssl · almalinux 10 | 1.6.3-23.el10_2.1 | ALSA-2026:66392 | Sep 10, 2026 |
| apr-util-openssl · almalinux 8 | 1.6.1-9.el8_10.1 | ALSA-2026:69113 | Sep 21, 2026 |
| apr-util-openssl · almalinux 9 | 1.6.1-23.el9_8.1 | ALSA-2026:66341 | Sep 10, 2026 |
| apr-util-openssl · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-openssl · ol 10 | 0:1.6.3-23.el10_2.1 | ELSA-2026-66392-0 | Sep 10, 2026 |
| apr-util-openssl · ol 8 | 0:1.6.1-9.el8_10.1 | ELSA-2026-69113 | Sep 23, 2026 |
| apr-util-openssl · ol 9 | 0:1.6.1-23.el9_8.1 | ELSA-2026-66341-0 | Sep 10, 2026 |
| apr-util-openssl-debuginfo · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-pgsql · RHEL 8 | 0:1.6.1-9.el8_10.1 | RHSA-2026:69113 | Sep 22, 2026 |
| apr-util-pgsql · RHEL 9 | 0:1.6.1-23.el9_8.1 | RHSA-2026:66341 | Sep 13, 2026 |
| apr-util-pgsql · almalinux 10 | 1.6.3-23.el10_2.1 | ALSA-2026:66392 | Sep 10, 2026 |
| apr-util-pgsql · almalinux 8 | 1.6.1-9.el8_10.1 | ALSA-2026:69113 | Sep 21, 2026 |
| apr-util-pgsql · almalinux 9 | 1.6.1-23.el9_8.1 | ALSA-2026:66341 | Sep 10, 2026 |
| apr-util-pgsql · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-pgsql · ol 10 | 0:1.6.3-23.el10_2.1 | ELSA-2026-66392-0 | Sep 10, 2026 |
| apr-util-pgsql · ol 8 | 0:1.6.1-9.el8_10.1 | ELSA-2026-69113 | Sep 23, 2026 |
| apr-util-pgsql · ol 9 | 0:1.6.1-23.el9_8.1 | ELSA-2026-66341-0 | Sep 10, 2026 |
| apr-util-pgsql-debuginfo · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-sqlite · RHEL 8 | 0:1.6.1-9.el8_10.1 | RHSA-2026:69113 | Sep 22, 2026 |
| apr-util-sqlite · RHEL 9 | 0:1.6.1-23.el9_8.1 | RHSA-2026:66341 | Sep 13, 2026 |
| apr-util-sqlite · almalinux 10 | 1.6.3-23.el10_2.1 | ALSA-2026:66392 | Sep 10, 2026 |
| apr-util-sqlite · almalinux 8 | 1.6.1-9.el8_10.1 | ALSA-2026:69113 | Sep 21, 2026 |
| apr-util-sqlite · almalinux 9 | 1.6.1-23.el9_8.1 | ALSA-2026:66341 | Sep 10, 2026 |
| apr-util-sqlite · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| apr-util-sqlite · ol 10 | 0:1.6.3-23.el10_2.1 | ELSA-2026-66392-0 | Sep 10, 2026 |
| apr-util-sqlite · ol 8 | 0:1.6.1-9.el8_10.1 | ELSA-2026-69113 | Sep 23, 2026 |
| apr-util-sqlite · ol 9 | 0:1.6.1-23.el9_8.1 | ELSA-2026-66341-0 | Sep 10, 2026 |
| apr-util-sqlite-debuginfo · amzn 2023 | 1.6.5-1.amzn2023.0.1 | ALAS2023-2026-2115 | Aug 31, 2026 |
| libaprutil1 · Ubuntu 18.04.6 LTS (bionic) | 1.6.1-2ubuntu0.1+esm1 | libaprutil1 1.6.1-2ubuntu0.1+esm1 | Sep 5, 2026 |
| libaprutil1 · Ubuntu 20.04 LTS (focal) | 1.6.1-4ubuntu2.2+esm1 | libaprutil1 1.6.1-4ubuntu2.2+esm1 | Sep 5, 2026 |
| libaprutil1 · Ubuntu 22.04.1 LTS (jammy) | 1.6.1-5ubuntu4.22.04.3 | libaprutil1 1.6.1-5ubuntu4.22.04.3 | Sep 5, 2026 |
| libaprutil1-dbd-mysql · Ubuntu 18.04.6 LTS (bionic) | 1.6.1-2ubuntu0.1+esm1 | libaprutil1-dbd-mysql 1.6.1-2ubuntu0.1+esm1 | Sep 5, 2026 |
| libaprutil1-dbd-mysql · Ubuntu 20.04 LTS (focal) | 1.6.1-4ubuntu2.2+esm1 | libaprutil1-dbd-mysql 1.6.1-4ubuntu2.2+esm1 | Sep 5, 2026 |
| libaprutil1-dbd-mysql · Ubuntu 22.04.1 LTS (jammy) | 1.6.1-5ubuntu4.22.04.3 | libaprutil1-dbd-mysql 1.6.1-5ubuntu4.22.04.3 | Sep 5, 2026 |
| libaprutil1-dbd-mysql · Ubuntu 24.04.5 LTS (noble) | 1.6.3-1.1ubuntu7.1 | libaprutil1-dbd-mysql 1.6.3-1.1ubuntu7.1 | Sep 5, 2026 |
| libaprutil1-dbd-mysql · Ubuntu 26.04.1 LTS (resolute) | 1.6.3-3ubuntu3.1 | libaprutil1-dbd-mysql 1.6.3-3ubuntu3.1 | Aug 6, 2026 |
| libaprutil1-dbd-odbc · Ubuntu 18.04.6 LTS (bionic) | 1.6.1-2ubuntu0.1+esm1 | libaprutil1-dbd-odbc 1.6.1-2ubuntu0.1+esm1 | Sep 5, 2026 |
| libaprutil1-dbd-odbc · Ubuntu 20.04 LTS (focal) | 1.6.1-4ubuntu2.2+esm1 | libaprutil1-dbd-odbc 1.6.1-4ubuntu2.2+esm1 | Sep 5, 2026 |
| libaprutil1-dbd-odbc · Ubuntu 22.04.1 LTS (jammy) | 1.6.1-5ubuntu4.22.04.3 | libaprutil1-dbd-odbc 1.6.1-5ubuntu4.22.04.3 | Sep 5, 2026 |
| libaprutil1-dbd-odbc · Ubuntu 24.04.5 LTS (noble) | 1.6.3-1.1ubuntu7.1 | libaprutil1-dbd-odbc 1.6.3-1.1ubuntu7.1 | Sep 5, 2026 |
| libaprutil1-dbd-odbc · Ubuntu 26.04.1 LTS (resolute) | 1.6.3-3ubuntu3.1 | libaprutil1-dbd-odbc 1.6.3-3ubuntu3.1 | Aug 6, 2026 |
| libaprutil1-dbd-pgsql · Ubuntu 18.04.6 LTS (bionic) | 1.6.1-2ubuntu0.1+esm1 | libaprutil1-dbd-pgsql 1.6.1-2ubuntu0.1+esm1 | Sep 5, 2026 |
| libaprutil1-dbd-pgsql · Ubuntu 20.04 LTS (focal) | 1.6.1-4ubuntu2.2+esm1 | libaprutil1-dbd-pgsql 1.6.1-4ubuntu2.2+esm1 | Sep 5, 2026 |
| libaprutil1-dbd-pgsql · Ubuntu 22.04.1 LTS (jammy) | 1.6.1-5ubuntu4.22.04.3 | libaprutil1-dbd-pgsql 1.6.1-5ubuntu4.22.04.3 | Sep 5, 2026 |
| libaprutil1-dbd-pgsql · Ubuntu 24.04.5 LTS (noble) | 1.6.3-1.1ubuntu7.1 | libaprutil1-dbd-pgsql 1.6.3-1.1ubuntu7.1 | Sep 5, 2026 |
| libaprutil1-dbd-pgsql · Ubuntu 26.04.1 LTS (resolute) | 1.6.3-3ubuntu3.1 | libaprutil1-dbd-pgsql 1.6.3-3ubuntu3.1 | Aug 6, 2026 |
| libaprutil1-dbd-sqlite3 · Ubuntu 18.04.6 LTS (bionic) | 1.6.1-2ubuntu0.1+esm1 | libaprutil1-dbd-sqlite3 1.6.1-2ubuntu0.1+esm1 | Sep 5, 2026 |
| libaprutil1-dbd-sqlite3 · Ubuntu 20.04 LTS (focal) | 1.6.1-4ubuntu2.2+esm1 | libaprutil1-dbd-sqlite3 1.6.1-4ubuntu2.2+esm1 | Sep 5, 2026 |
| libaprutil1-dbd-sqlite3 · Ubuntu 22.04.1 LTS (jammy) | 1.6.1-5ubuntu4.22.04.3 | libaprutil1-dbd-sqlite3 1.6.1-5ubuntu4.22.04.3 | Sep 5, 2026 |
| libaprutil1-dbd-sqlite3 · Ubuntu 24.04.5 LTS (noble) | 1.6.3-1.1ubuntu7.1 | libaprutil1-dbd-sqlite3 1.6.3-1.1ubuntu7.1 | Sep 5, 2026 |
| libaprutil1-dbd-sqlite3 · Ubuntu 26.04.1 LTS (resolute) | 1.6.3-3ubuntu3.1 | libaprutil1-dbd-sqlite3 1.6.3-3ubuntu3.1 | Aug 6, 2026 |
| libaprutil1-ldap · Ubuntu 18.04.6 LTS (bionic) | 1.6.1-2ubuntu0.1+esm1 | libaprutil1-ldap 1.6.1-2ubuntu0.1+esm1 | Sep 5, 2026 |
| libaprutil1-ldap · Ubuntu 20.04 LTS (focal) | 1.6.1-4ubuntu2.2+esm1 | libaprutil1-ldap 1.6.1-4ubuntu2.2+esm1 | Sep 5, 2026 |
| libaprutil1-ldap · Ubuntu 22.04.1 LTS (jammy) | 1.6.1-5ubuntu4.22.04.3 | libaprutil1-ldap 1.6.1-5ubuntu4.22.04.3 | Sep 5, 2026 |
| libaprutil1-ldap · Ubuntu 24.04.5 LTS (noble) | 1.6.3-1.1ubuntu7.1 | libaprutil1-ldap 1.6.3-1.1ubuntu7.1 | Sep 5, 2026 |
| libaprutil1-ldap · Ubuntu 26.04.1 LTS (resolute) | 1.6.3-3ubuntu3.1 | libaprutil1-ldap 1.6.3-3ubuntu3.1 | Aug 6, 2026 |
| libaprutil1t64 · Ubuntu 24.04.5 LTS (noble) | 1.6.3-1.1ubuntu7.1 | libaprutil1t64 1.6.3-1.1ubuntu7.1 | Sep 5, 2026 |
| libaprutil1t64 · Ubuntu 26.04.1 LTS (resolute) | 1.6.3-3ubuntu3.1 | libaprutil1t64 1.6.3-3ubuntu3.1 | Aug 6, 2026 |
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