Amazon Linux 2023 : apr-util, apr-util-devel, apr-util-ldap (ALAS2023-2026-2115)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2115 advisory. APR-util versions 1.6.3 and earlier function aprpasswordvalidate was not constant-time with regards to hashes or passwords comparisons, potentially leaking their content via a side channel...

Important: apr-util

Issue Overview: APR-util versions 1.6.3 and earlier function aprpasswordvalidate 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...

Amazon Linux 2 : apr-util, --advisory ALAS2-2026-3892 (ALAS-2026-3892)

The version of apr-util installed on the remote host is prior to 1.6.5-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3892 advisory. APR-util versions 1.6.3 and earlier function aprpasswordvalidate was not constant-time with regards to hashes or password...

Linux Distros Unpatched Vulnerability : CVE-2026-40203

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail an...

CVE-2026-55785

free5GC is an open-source implementation of the 5G core network. Prior to 1.4.5, the AUSF component performs cryptographic authentication comparisons in internal/sbi/processor/ueauthentication.go with ordinary equality helpers. Auth5gAkaComfirmRequestProcedure compares RES and XRES with...

free5GC AUSF uses non-constant-time authentication comparisons and logs XRES* in 5G-AKA

Summary The AUSF component of free5GC compares authentication response values with normal Go equality helpers instead of constant-time cryptographic comparison functions. Two authentication flows are affected in internal/sbi/processor/ueauthentication.go: 1. 5G-AKA confirmation compares RES and...

GHSA-FP46-6VFW-GC9C free5GC AUSF uses non-constant-time authentication comparisons and logs XRES* in 5G-AKA

Summary The AUSF component of free5GC compares authentication response values with normal Go equality helpers instead of constant-time cryptographic comparison functions. Two authentication flows are affected in internal/sbi/processor/ueauthentication.go: 1. 5G-AKA confirmation compares RES and...

CVE-2026-42393

The comparison used for the doveadm password and API key is not fully timing safe and can reveal the length of the configured secret. An attacker with access to the same network as the doveadm service, able to make repeated requests and measure response timing accurately, can learn the length of...

AZL-98274 CVE-2026-40203 affecting package dovecot 2.3.20-1

When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox. An attacker that can send mail to a user and can also observe the sizes of that user's IMAP traffic can...

ALPINE-CVE-2026-40203

When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox. An attacker that can send mail to a user and can also observe the sizes of that user's IMAP traffic can...

CVE-2026-40203

When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox. An attacker that can send mail to a user and can also observe the sizes of that user's IMAP traffic can...

CVE-2026-42393

CVE-2026-42393 affects the doveadm service in Open-Xchange's Dovecot implementation. The password and API key comparison is not fully timing-safe, allowing a network-adjacent attacker who can make repeated requests and accurately measure response times to learn the length of the configured secret...

CVE-2026-42393

The comparison used for the doveadm password and API key is not fully timing safe and can reveal the length of the configured secret. An attacker with access to the same network as the doveadm service, able to make repeated requests and measure response timing accurately, can learn the length of...

CVE-2026-42393

The comparison used for the doveadm password and API key is not fully timing safe and can reveal the length of the configured secret. An attacker with access to the same network as the doveadm service, able to make repeated requests and measure response timing accurately, can learn the length of...

EUVD-2026-67669

When IMAP compression is enabled, the same compression state is reused across responses in a session, so response sizes depend on both attacker-supplied mail and other mail in the same mailbox. An attacker that can send mail to a user and can also observe the sizes of that user's IMAP traffic can...

CVE-2026-40203

CVE-2026-40203 affects Open-Xchange Dovecot when IMAP compression is enabled. The root cause is that the same compression state is reused across responses in a session, causing response sizes to depend on both attacker-supplied mail and other mail in the same mailbox. An attacker who can send mai...

OPENSUSE-SU-2026:21672-1 Security update for apr-util

This update for apr-util fixes the following issues: - CVE-2025-49506: hash/password content leak via side channel timing attack against aprpasswordvalidate bsc1274237. - CVE-2026-32327: XML stack recursion crash bsc1274235. - CVE-2026-34191: SQL injection via aprdbdoracle bsc1274850. -...

PT-2026-83062

Name of the Vulnerable Software and Affected Versions dovecot versions prior to 2.4.5-1.1 Description When IMAP compression is enabled, the compression state is reused across responses in a session. This causes response sizes to depend on both attacker-supplied mail and other mail within the same...

PT-2026-83370

Name of the Vulnerable Software and Affected Versions free5GC versions prior to 1.4.5 Description The AUSF component uses non-constant-time equality helpers for cryptographic authentication comparisons in internal/sbi/processor/ue authentication.go. Specifically, the...

UBUNTU-CVE-2026-42393

The comparison used for the doveadm password and API key is not fully timing safe and can reveal the length of the configured secret. An attacker with access to the same network as the doveadm service, able to make repeated requests and measure response timing accurately, can learn the length of...