CVE-2026-86345 389-ds-base: 389-ds-base: starttls plaintext-buffer retention allows on-path attacker to forge an ldap client's authentication result

A flaw was found in 389-ds-base. The server does not discard plaintext bytes already buffered from a client connection when negotiating StartTLS, allowing an on-path attacker to inject a crafted LDAP message that is processed after the TLS upgrade and whose response is delivered to the client in...

CVE-2026-86345

A flaw exists in 389-ds-base where the server fails to discard plaintext bytes buffered from a client connection during StartTLS negotiation. This allows an on-path attacker to inject a crafted LDAP message that is processed post-TLS upgrade. Due to a messageID collision , the injected response c...

CVE-2026-86345 389-ds-base: 389-ds-base: starttls plaintext-buffer retention allows on-path attacker to forge an ldap client's authentication result

A flaw was found in 389-ds-base. The server does not discard plaintext bytes already buffered from a client connection when negotiating StartTLS, allowing an on-path attacker to inject a crafted LDAP message that is processed after the TLS upgrade and whose response is delivered to the client in...

CVE-2026-86345

A flaw was found in 389-ds-base. The server does not discard plaintext bytes already buffered from a client connection when negotiating StartTLS, allowing an on-path attacker to inject a crafted LDAP message that is processed after the TLS upgrade and whose response is delivered to the client in...

CVE-2026-86345

A flaw was found in 389-ds-base. The server does not discard plaintext bytes already buffered from a client connection when negotiating StartTLS, allowing an on-path attacker to inject a crafted LDAP message that is processed after the TLS upgrade and whose response is delivered to the client in...

AlmaLinux 9.2 [TuxCare] Security Update: ruby / ruby-default-gems / ruby-devel / ruby-doc / ruby-libs / etc (ALMALINUX9.2:CLSA-2026:1783525446)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1783525446 advisory. - Net::IMAP implements Internet Message Access Protocol IMAP client functionality in Ruby. Prior to versions 0.3.10, 0.4.24, 0.5.14, and 0.6....

PT-2026-104060

A flaw was found in 389-ds-base. The server does not discard plaintext bytes already buffered from a client connection when negotiating StartTLS, allowing an on-path attacker to inject a crafted LDAP message that is processed after the TLS upgrade and whose response is delivered to the client in...

Rocky Linux 8 [CIQ] Security Update: curl / curl-debuginfo / curl-debugsource / libcurl / etc Multiple Vulnerabilities (crlsa-2021_4059)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20214059 advisory. curl: Requirement to use TLS not properly enforced for IMAP, POP3, and FTP protocols CVE-2021-22946 curl: Server responses received before STARTTLS process...

Rocky Linux 8 [CIQ] Security Update: bogofilter / bogofilter-debuginfo / bogofilter-debugsource / etc (crlsa-2020_4649)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-20204649 advisory. evolution-data-server: Response injection via STARTTLS in SMTP and POP3 CVE-2020-14928 Tenable has extracted the preceding description block directly from the CIQ...

AlmaLinux 9.2 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1785499004)

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1785499004 advisory. - A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection...

AlmaLinux 9.6 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1785502239)

The AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1785502239 advisory. - A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection...

CentOS Linux 7 [TuxCare] Security Update: curl / libcurl / libcurl-devel (CENTOS7:CLSA-2026:1785400806)

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1785400806 advisory. - A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though th...

CentOS Linux 8.4 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal (CENTOS8.4:CLSA-2026:1785319688)

The CentOS Linux 8.4 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.4:CLSA-2026:1785319688 advisory. - A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even thoug...

CentOS Linux 8.5 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal (CENTOS8.5:CLSA-2026:1785320042)

The CentOS Linux 8.5 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS8.5:CLSA-2026:1785320042 advisory. - A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even thoug...

Rocky Linux 9.6 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1785502239)

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1785502239 advisory. - A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection...

CentOS Linux 7 [TuxCare] Security Update: ruby / ruby-devel / ruby-doc / ruby-irb / ruby-libs / ruby-tcltk / etc Multiple Vulnerabilities (CENTOS7:CLSA-2024:1727115733)

The CentOS Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS7:CLSA-2024:1727115733 advisory. - In RDoc 3.11 through 6.x before 6.3.1, as distributed with Ruby through 3.0.1, it is possible to execute arbitrary code via | and tags...

CentOS Linux 6 [TuxCare] Security Update: curl / libcurl / libcurl-devel (CENTOS6:CLSA-2026:1786464575)

The CentOS Linux 6 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS6:CLSA-2026:1786464575 advisory. - A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though th...

CentOS Linux 8 [TuxCare] Security Update: curl / curl-minimal / libcurl / libcurl-devel / libcurl-minimal (CENTOS-STREAM8:CLSA-2026:1785421291)

The CentOS Linux 8 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS- STREAM8:CLSA-2026:1785421291 advisory. - A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even...

Amazon Linux 2 : curl (ALAS-2026-3953)

The version of curl installed on the remote host is prior to 8.3.0-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2026-3953 advisory. When a user invokes curl using a schemeless URL combined with --proto-default sftp or scp, a disconnect occurs between the to...

USN-8487-2 curl regression

USN-8487-1 fixed vulnerabilities in curl. Unfortunately that update contained an incomplete fix for CVE-2026-8927. This update fixes the problem. Original advisory details: Andrew Nesbitt discovered that curl could reuse an existing live connection during STARTTLS-based connection upgrades even...