Linux Distros Unpatched Vulnerability : CVE-2026-72139

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - tcp: defer md5siginfo kfree past RCU grace period in tcpconnect The md5+ao reconciliation in tcpconnect net/ipv4/tcpoutput.c has two symmetric branches: if...

GHSA-VXXM-WWQH-MH47 http4k: `DigestAuthProvider.verify` ignored configured algorithm and did not bind to request URI

Impact An issue in DigestAuthProvider.verify: Algorithm silently forced to MD5. The configured algorithm parameter was ignored — every verification used MD5 regardless of configuration. Deployments believing they were running SHA-256 Digest auth were silently inheriting MD5's collision weaknesses...

http4k: `DigestAuthProvider.verify` ignored configured algorithm and did not bind to request URI

Impact An issue in DigestAuthProvider.verify: Algorithm silently forced to MD5. The configured algorithm parameter was ignored — every verification used MD5 regardless of configuration. Deployments believing they were running SHA-256 Digest auth were silently inheriting MD5's collision weaknesses...

Unity Linux 20.1070a Security Update: libpq (UTSA-2026-099554)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099554 advisory. Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover user credentials sufficient to authenticate. Th...

CVE-2026-72139

In the Linux kernel, the following vulnerability has been resolved: tcp: defer md5siginfo kfree past RCU grace period in tcpconnect The md5+ao reconciliation in tcpconnect net/ipv4/tcpoutput.c has two symmetric branches: if needsmd5 tcpaodestroysocksk, false; else if needsao tcpclearmd5listsk;...

UBUNTU-CVE-2026-72139

In the Linux kernel, the following vulnerability has been resolved: tcp: defer md5siginfo kfree past RCU grace period in tcpconnect The md5+ao reconciliation in tcpconnect net/ipv4/tcpoutput.c has two symmetric branches: if needsmd5 tcpaodestroysocksk, false; else if needsao tcpclearmd5listsk;...

CVE-2026-72139

The CVE concerns a Linux kernel race where per-socket authentication data (md5sig/md5sig_key) could be freed before an RCU grace period elapses during tcp_connect. In the vulnerable path, two branches (needs_md5 and needs_ao) free the md5sig_info or its keys while a socket is in TCP_SYN_SENT, ris...

CVE-2026-72139 tcp: defer md5sig_info kfree past RCU grace period in tcp_connect

In the Linux kernel, the following vulnerability has been resolved: tcp: defer md5siginfo kfree past RCU grace period in tcpconnect The md5+ao reconciliation in tcpconnect net/ipv4/tcpoutput.c has two symmetric branches: if needsmd5 tcpaodestroysocksk, false; else if needsao tcpclearmd5listsk;...

EUVD-2026-58897

In the Linux kernel, the following vulnerability has been resolved: tcp: defer md5siginfo kfree past RCU grace period in tcpconnect The md5+ao reconciliation in tcpconnect net/ipv4/tcpoutput.c has two symmetric branches: if needsmd5 tcpaodestroysocksk, false; else if needsao tcpclearmd5listsk;...

PT-2026-72327

In the Linux kernel, the following vulnerability has been resolved: tcp: defer md5sig info kfree past RCU grace period in tcp connect The md5+ao reconciliation in tcp connect net/ipv4/tcp output.c has two symmetric branches: if needs md5 tcp ao destroy socksk, false; else if needs ao tcp clear md...

CVE-2026-70557 diboot-core Authenticated Arbitrary Field Read via loadRelatedData Discloses Password Hashes and Salts

diboot-core's POST /common/load-related-data endpoint resolves caller-supplied field names to any @TableField column of any entity and returns those values for all rows, with no field or entity allowlist. The only guard, relatedDataSecurityCheck, returns true unconditionally, so any authenticated...

EulerOS 2.0 SP13 : mutt (EulerOS-SA-2026-3032)

According to the versions of the mutt packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : mutt before 2.3.2 sometimes uses strfcpy instead of memcpy for the IMAP authcram MD5 digest.CVE-2026-43859 In mutt before 2.3.2, the imapauthgss...

postgresql: PostgreSQL: Credential recovery via covert timing channel in MD5 password comparison

A flaw was found in PostgreSQL. This vulnerability, a covert timing channel, exists in the comparison of MD5-hashed passwords during authentication. A remote attacker could exploit this to recover user credentials, gaining unauthorized access to the database. This issue specifically impacts...

Important: Red Hat Security Advisory: postgresql security update

An update for postgresql is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available...

CVE-2026-38447

Summary: CVE-2026-38447 affects osTicket 1.18.3, where API keys are generated with a predictable construction based on MD5 hashing and inputs such as the current timestamp and client IP. The underlying issue is low-entropy key generation due to MD5 and predictable inputs. Impact: The vulnerabilit...

K000162463: PostgreSQL vulnerability CVE-2026-6478

Security Advisory Description Covert timing channel in comparison of MD5-hashed password in PostgreSQL authentication allows an attacker to recover user credentials sufficient to authenticate. This does not affect scram-sha-256 passwords, the default in all supported releases. However, current...

CVE-2026-64459

A flaw was found in the Linux kernel's TCP-AO TCP Authentication Option implementation. An unprivileged local user can exploit a use-after-free vulnerability in the tcpaodestroysock function. By manipulating TCP sockets with TCPMD5SIG and TCPAOADDKEY, an attacker can trigger a race condition duri...

postgresql: PostgreSQL: Credential recovery via covert timing channel in MD5 password comparison

A flaw was found in PostgreSQL. This vulnerability, a covert timing channel, exists in the comparison of MD5-hashed passwords during authentication. A remote attacker could exploit this to recover user credentials, gaining unauthorized access to the database. This issue specifically impacts...

EulerOS Virtualization 2.12.0 : kernel (EulerOS-SA-2026-2776)

According to the versions of the kernel packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : Input: alps - fix use-after-free bugs caused by dev3registerworkCVE-2025-68822 ext4: reject mount if bigalloc with sfirstdatablock ...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache CVE-2026-31402 In the Linux kernel, the following vulnerability has been resolved: ext4: validate pidx bounds in ext4extcorrectindexes CVE-2026-31449 In the Lin...