CVE-2026-6691 MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow

The MongoDB C Driver's Cyrus SASL integration performs unsafe string copying during username canonicalization, enabling a heap buffer overflow before any authentication or network traffic. This may be triggered by passing untrusted input in the username of a MongoDB URI with authMechanism=GSSAPI...

CVE-2026-6691

The MongoDB C Driver's Cyrus SASL integration performs unsafe string copying during username canonicalization, enabling a heap buffer overflow before any authentication or network traffic. This may be triggered by passing untrusted input in the username of a MongoDB URI with authMechanism=GSSAPI...

CVE-2026-6691 MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow

The MongoDB C Driver's Cyrus SASL integration performs unsafe string copying during username canonicalization, enabling a heap buffer overflow before any authentication or network traffic. This may be triggered by passing untrusted input in the username of a MongoDB URI with authMechanism=GSSAPI...

CVE-2026-6691

CVE-2026-6691 affects the MongoDB C Driver Cyrus SASL integration. The issue is unsafe string copying during username canonicalization, leading to a heap buffer overflow before any authentication or network traffic. The vulnerability can be triggered by untrusted input in the username of a MongoD...

CVE-2026-6691 MongoDB C Driver Cyrus SASL Canonicalization Buffer Overflow

The MongoDB C Driver's Cyrus SASL integration performs unsafe string copying during username canonicalization, enabling a heap buffer overflow before any authentication or network traffic. This may be triggered by passing untrusted input in the username of a MongoDB URI with authMechanism=GSSAPI...

RHCOS 4 : OpenShift Container Platform 4.6.51 (RHSA-2021:4799)

The remote Red Hat Enterprise Linux CoreOS 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:4799 advisory. - jenkins: FilePathmkdirs does not check permission to create parent directories CVE-2021-21685 - jenkins: File path filters do not...

PT-2026-37642

Name of the Vulnerable Software and Affected Versions mongo-c-driver affected versions not specified Description The Cyrus SASL integration in the MongoDB C Driver performs unsafe string copying during username canonicalization. This flaw enables a heap buffer overflow—a condition where data...

PT-2026-34474

Name of the Vulnerable Software and Affected Versions uutils coreutils affected versions not specified Description A flaw in the chmod utility allows users to bypass the --preserve-root safety mechanism. The implementation validates if the target path is literally '/', but fails to canonicalize t...

SUSE-SU-2026:1406-1 Security update for util-linux

This update for util-linux fixes the following issues: Security issue: - CVE-2026-3184: access control bypass due to improper hostname canonicalization in login bsc1258859. Non security issues: - recognize fuse 'portal' as a virtual file system bsc1234736. - fdisk: fix possible partition overlay...

SUSE-SU-2026:21016-1 Security update for util-linux

This update for util-linux fixes the following issues: Security issues: - CVE-2025-14104: heap buffer overread in setpwnam when processing 256-byte usernames bsc1254666. - CVE-2026-3184: access control bypass due to improper hostname canonicalization in login bsc1258859. Non security issues: -...

util-linux: util-linux: Access control bypass due to improper hostname canonicalization

A flaw was found in util-linux. Improper hostname canonicalization in the login1 utility, when invoked with the -h option, can modify the supplied remote hostname before setting PAMRHOST. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing...

Util-linux: util-linux: access control bypass due to improper hostname canonicalization

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EUVD-2026-18817

A flaw was found in util-linux. Improper hostname canonicalization in the login1 utility, when invoked with the -h option, can modify the supplied remote hostname before setting PAMRHOST. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing...

AZL-81911 CVE-2026-3184 affecting package util-linux for versions less than 2.40.2-4

A flaw was found in util-linux. Improper hostname canonicalization in the login1 utility, when invoked with the -h option, can modify the supplied remote hostname before setting PAMRHOST. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing...

CVE-2026-3184

A flaw was found in util-linux. Improper hostname canonicalization in the login1 utility, when invoked with the -h option, can modify the supplied remote hostname before setting PAMRHOST. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing...

CVE-2026-3184

A flaw was found in util-linux. Improper hostname canonicalization in the login1 utility, when invoked with the -h option, can modify the supplied remote hostname before setting PAMRHOST. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing...

CVE-2026-3184

A flaw was found in util-linux. Improper hostname canonicalization in the login1 utility, when invoked with the -h option, can modify the supplied remote hostname before setting PAMRHOST. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing...

CVE-2026-3184 Util-linux: util-linux: access control bypass due to improper hostname canonicalization

A flaw was found in util-linux. Improper hostname canonicalization in the login1 utility, when invoked with the -h option, can modify the supplied remote hostname before setting PAMRHOST. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing...

CVE-2026-3184

Affects util-linux, specifically the login(1) utility when invoked with -h. The root cause is improper hostname canonicalization, which can modify the supplied remote hostname before setting PAM_RHOST. This weakness can bypass host-based PAM access control rules that rely on fully qualified domai...

CVE-2026-3184

A flaw was found in util-linux. Improper hostname canonicalization in the login1 utility, when invoked with the -h option, can modify the supplied remote hostname before setting PAMRHOST. A remote attacker could exploit this by providing a specially crafted hostname, potentially bypassing...