OAuth2::Client#request: Protocol-relative redirect Location overrides authority, leaking bearer Authorization to attacker host

Summary When an application uses OAuth2::Client typically via an OAuth2::AccessToken and the configured authorization server returns a redirect whose Location header is a protocol-relative URI of the form //attacker.example/leak, OAuth2::Clientrequest resolves the redirect with...

CVE-2026-66140

Exim before 4.99.5 allows directory traversal to access files outside of the spool area, and consequently gain privileges, because arguments related to queue-name are mishandled...

CVE-2026-66141

Exim before 4.99.5 allows .forward privilege escalation because forcecommand for a pipe transport is mishandled...

CVE-2026-26080

HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected...

EUVD-2026-45988

HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected...

CVE-2026-26080

HAProxy vulnerability CVE-2026-26080 affects HAProxy Community Edition 3.2.x–3.3.x prior to 3.3.3; HAProxy Enterprise and ALOHA are affected. Root cause: mishandling of varint can cause a loop or crash, leading to DoS. Remediation: upgrade to 3.3.3 or newer (openSUSE/SUSE advisories also referenc...

CVE-2026-26080

HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected...

CVE-2026-26080

HAProxy Community Edition 3.2.x through 3.3.x before 3.3.3 can enter a loop or crash because varint is mishandled. HAProxy Enterprise and ALOHA are also affected...

OESA-2026-2983 libidn security update

GNU Libidn is a fully documented implementation of the Stringprep, Punycode and IDNA 2003 specifications. Libidn's purpose is to encode and decode internationalized domain names. Security Fixes: GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs...

CVE-2026-57728

Improper Neutralization of Input During Web Page Generation 'Cross-site Scripting' vulnerability in UX-themes Flatsome flatsome allows Reflected XSS.This issue affects Flatsome: from n/a through = 3.20.5...

kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling

A flaw was found in the Linux kernel's Kernel-based Virtual Machine KVM component. A local attacker with privileges on the host system could exploit a vulnerability in how KVM handles shadow page table entries SPTEs during memory-mapped I/O MMIO operations. By manipulating guest page table entrie...

CVE-2026-60000

sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service resource consumption from excessive authentication attempts because MaxAuthTries was mishandled for GSSAPIAuthentication...

CVE-2026-60000

sshd in OpenSSH before 10.4 allows remote attackers to cause a denial of service resource consumption from excessive authentication attempts because MaxAuthTries was mishandled for GSSAPIAuthentication...

PT-2026-56291

Name of the Vulnerable Software and Affected Versions OpenSSH versions prior to 10.4 Description The sshd component allows remote attackers to cause a denial of service through resource consumption. This occurs due to the mishandling of the MaxAuthTries variable during GSSAPIAuthentication, which...

PYSEC-2026-843 Matrix Sydent mishandles emails

util/emailutils.py in Matrix Sydent before 1.0.2 mishandles registration restrictions that are based on e-mail domain, if the allowedlocal3pids option is enabled. This occurs because of potentially unwanted behavior in Python, in which an email.utils.parseaddr call on...

CVE-2026-57053

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affected code is not present in libidn2...

CVE-2026-57053

CVE-2026-57053 affects GNU libidn before 1.44, with out-of-bounds reads of uninitialized memory in the ToUnicode APIs due to mishandling in idna_to_unicode_internal; the vulnerable code is not present in libidn2. The CVSSv3.1 base score is 4.0 (Medium), with LOCAL attack vector, HIGH complexity, ...

EUVD-2026-38523

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affected code is not present in libidn2...

PT-2026-51573

Name of the Vulnerable Software and Affected Versions GNU libidn versions prior to 1.44 Description An issue exists in the ToUnicode APIs due to mishandling in the idna to unicode internal function, which can lead to out-of-bounds reads of uninitialized memory. Recommendations Update to version...

CVE-2026-44911

Authorization handling for component configuration verification requests in Apache NiFi 1.15.0 through 2.9.0 allows clients with read access to submit proposed configuration properties. The proposed properties override current configuration, enabling users with read access to invoke predefined...