CVE-2025-49506

EUVD-2025-210642
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
apacheCNA
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 31.82%
Affected Products (NVD)
VendorProductVersion
apacheapr-util
1.2.0 ≤
𝑥
< 1.6.4
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
apacheportable_runtime_utility
1.2.0 ≤
𝑥
≤ 1.6.3
CNA
Debian logo
Debian Releases
Debian Product
Codename
apr-util
bookworm
vulnerable
bookworm (security)
1.6.3-1+deb12u1
fixed
forky
1.6.4-2
fixed
sid
1.6.4-2
fixed
trixie
1.6.3-3+deb13u1
fixed
trixie (security)
1.6.3-3+deb13u1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
apr-util
bionic
Fixed 1.6.1-2ubuntu0.1+esm1
released
focal
Fixed 1.6.1-4ubuntu2.2+esm1
released
jammy
Fixed 1.6.1-5ubuntu4.22.04.3
released
noble
Fixed 1.6.3-1.1ubuntu7.1
released
resolute
Fixed 1.6.3-3ubuntu3.1
released
trusty
Fixed 1.5.3-1ubuntu0.1~esm3
released
xenial
Fixed 1.5.4-1ubuntu0.1~esm1
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
apr-util-devel
suse enterprise desktop 15 SP7
1.6.1-150600.27.3.1
fixed
suse enterprise sap 15 SP4
1.6.1-150300.18.8.1
fixed
suse enterprise sap 15 SP5
1.6.1-150300.18.8.1
fixed
suse enterprise sap 15 SP6
1.6.1-150600.27.3.1
fixed
suse enterprise sap 15 SP7
1.6.1-150600.27.3.1
fixed
suse enterprise server 15 SP4
1.6.1-150300.18.8.1
fixed
suse enterprise server 15 SP5
1.6.1-150300.18.8.1
fixed
suse enterprise server 15 SP6
1.6.1-150600.27.3.1
fixed
suse enterprise server 15 SP7
1.6.1-150600.27.3.1
fixed
libapr-util1
suse enterprise desktop 15 SP7
1.6.1-150600.27.3.1
fixed
suse enterprise sap 12 SP5
1.5.3-8.36.1
fixed
suse enterprise sap 15 SP4
1.6.1-150300.18.8.1
fixed
suse enterprise sap 15 SP5
1.6.1-150300.18.8.1
fixed
suse enterprise sap 15 SP6
1.6.1-150600.27.3.1
fixed
suse enterprise sap 15 SP7
1.6.1-150600.27.3.1
fixed
suse enterprise server 12 SP3
1.5.3-2.36.1
fixed
suse enterprise server 12 SP5
1.5.3-8.36.1
fixed
suse enterprise server 15 SP4
1.6.1-150300.18.8.1
fixed
suse enterprise server 15 SP5
1.6.1-150300.18.8.1
fixed
suse enterprise server 15 SP6
1.6.1-150600.27.3.1
fixed
suse enterprise server 15 SP7
1.6.1-150600.27.3.1
fixed
libapr-util1-dbd-mysql
suse enterprise sap 15 SP4
1.6.1-150300.18.8.1
fixed
suse enterprise sap 15 SP5
1.6.1-150300.18.8.1
fixed
suse enterprise sap 15 SP6
1.6.1-150600.27.3.1
fixed
suse enterprise sap 15 SP7
1.6.1-150600.27.3.1
fixed
suse enterprise server 15 SP4
1.6.1-150300.18.8.1
fixed
suse enterprise server 15 SP5
1.6.1-150300.18.8.1
fixed
suse enterprise server 15 SP6
1.6.1-150600.27.3.1
fixed
suse enterprise server 15 SP7
1.6.1-150600.27.3.1
fixed
libapr-util1-dbd-pgsql
suse enterprise sap 15 SP4
1.6.1-150300.18.8.1
fixed
suse enterprise sap 15 SP5
1.6.1-150300.18.8.1
fixed
suse enterprise sap 15 SP6
1.6.1-150600.27.3.1
fixed
suse enterprise sap 15 SP7
1.6.1-150600.27.3.1
fixed
suse enterprise server 15 SP4
1.6.1-150300.18.8.1
fixed
suse enterprise server 15 SP5
1.6.1-150300.18.8.1
fixed
suse enterprise server 15 SP6
1.6.1-150600.27.3.1
fixed
suse enterprise server 15 SP7
1.6.1-150600.27.3.1
fixed
libapr-util1-dbd-sqlite3
suse enterprise sap 12 SP5
1.5.3-8.36.1
fixed
suse enterprise sap 15 SP4
1.6.1-150300.18.8.1
fixed
suse enterprise sap 15 SP5
1.6.1-150300.18.8.1
fixed
suse enterprise sap 15 SP6
1.6.1-150600.27.3.1
fixed
suse enterprise sap 15 SP7
1.6.1-150600.27.3.1
fixed
suse enterprise server 12 SP3
1.5.3-2.36.1
fixed
suse enterprise server 12 SP5
1.5.3-8.36.1
fixed
suse enterprise server 15 SP4
1.6.1-150300.18.8.1
fixed
suse enterprise server 15 SP5
1.6.1-150300.18.8.1
fixed
suse enterprise server 15 SP6
1.6.1-150600.27.3.1
fixed
suse enterprise server 15 SP7
1.6.1-150600.27.3.1
fixed
libapr-util1-devel
suse enterprise sap 12 SP5
1.5.3-8.36.1
fixed
suse enterprise server 12 SP5
1.5.3-8.36.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
apr-util
RHEL 9
0:1.6.1-23.el9_8.1
fixed
apr-util-bdb
RHEL 9
0:1.6.1-23.el9_8.1
fixed
apr-util-devel
RHEL 9
0:1.6.1-23.el9_8.1
fixed
apr-util-ldap
RHEL 9
0:1.6.1-23.el9_8.1
fixed
apr-util-mysql
RHEL 9
0:1.6.1-23.el9_8.1
fixed
apr-util-odbc
RHEL 9
0:1.6.1-23.el9_8.1
fixed
apr-util-openssl
RHEL 9
0:1.6.1-23.el9_8.1
fixed
apr-util-pgsql
RHEL 9
0:1.6.1-23.el9_8.1
fixed
apr-util-sqlite
RHEL 9
0:1.6.1-23.el9_8.1
fixed
Amazon Linux logo
Amazon Linux Releases
Amazon Package
Release
apr-util
Amazon Linux 2
0:1.6.5-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-bdb
Amazon Linux 2
0:1.6.5-1.amzn2.0.1
fixed
apr-util-debuginfo
Amazon Linux 2
0:1.6.5-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-debugsource
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-devel
Amazon Linux 2
0:1.6.5-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-ldap
Amazon Linux 2
0:1.6.5-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-ldap-debuginfo
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-lmdb
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-lmdb-debuginfo
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-mysql
Amazon Linux 2
0:1.6.5-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-mysql-debuginfo
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-nss
Amazon Linux 2
0:1.6.5-1.amzn2.0.1
fixed
apr-util-odbc
Amazon Linux 2
0:1.6.5-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-odbc-debuginfo
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-openssl
Amazon Linux 2
0:1.6.5-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-openssl-debuginfo
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-pgsql
Amazon Linux 2
0:1.6.5-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-pgsql-debuginfo
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-sqlite
Amazon Linux 2
0:1.6.5-1.amzn2.0.1
fixed
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
apr-util-sqlite-debuginfo
Amazon Linux 2023
0:1.6.5-1.amzn2023.0.1
fixed
Azure Linux logo
Azure Linux Releases
Azure Package
Release
apr-util
Azure Linux 3.0
0:1.6.3-3.azl3
fixed
Common Weakness Enumeration
References
https://lists.apache.org/thread/2v8o3bj9pb7lfcr57bdnjg9xfkj04mg5
http://www.openwall.com/lists/oss-security/2026/08/06/8