curl: Negotiate Authentication Premature on Connection Reuse

Summary: Curl 8.19.0+ inappropriately sends Negotiate authentication headers on reused keep-alive connections where authentication was already completed. Commit ab650379a8 June 2025 moved negotiate auth context to on-demand metadata storage, but during connection reuse the metadata gets cleared...

infosec-notebook

infosec-notebook Personal cybersecurity notes and references...

OESA-2026-1902 python3 security update

Python combines remarkable power with very clear syntax. It has modules, classes, exceptions, very high level dynamic data types, and dynamic typing. There are interfaces to many system calls and libraries, as well as to various windowing systems. New built-in modules are easily written in C or C...

curl: Integer Overflow/Signedness Mismatch in Printf Precision for HTTP/2 Trailer Headers

BUG IN https://raw.githubusercontent.com/curl/curl/07a9b89fedaec60bdbc254f23f66149b31d2f8da/lib/http2.c c ifstream-bodystarted / This is a trailer / H2BUGFinfofdatas, "h2 trailer: %.s: %.s", namelen, name, valuelen, value; result = Curldynaddf&stream-trailerrecvbuf, "%.s: %.s\r\n", namelen, name,...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: nodejs24: nodejs24-24.14.1-4.1.hum1 aarch64, x8664 nodejs24-bin-24.14.1-4.1.hum1 noarch nodejs24-devel-24.14.1-4.1.hum1 aarch64, x8664 nodejs24-docs-24.14.1-4.1.hum1 noarch...

Low: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: sqlite: lemon-3.52.0-1.1.hum1 aarch64, x8664 sqlite-3.52.0-1.1.hum1 aarch64, x8664 sqlite-analyzer-3.52.0-1.1.hum1 aarch64, x8664 sqlite-debug-3.52.0-1.1.hum1 aarch64, x8664...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: yarnpkg: yarnpkg-1.22.22-18.1.hum1 aarch64, x8664 yarnpkg-1.22.22-18.1.hum1.src src...

Moderate: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: unbound: python3-unbound-1.24.2-11.1.hum1 aarch64, x8664 unbound-1.24.2-11.1.hum1 aarch64, x8664 unbound-anchor-1.24.2-11.1.hum1 aarch64, x8664 unbound-devel-1.24.2-11.1.hum1 aarch64, x8664...

EUVD-2026-21611

Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass. packipv6 includes the sentinel byte from packipv4 when building the packed representation of IPv4 mapped addresses like ::ffff:192.168.1.1. This produces an 18 byte value instead of...

EUVD-2026-21633

GIMP JP2 File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GIMP. User interaction is required to exploit this vulnerability in that the target must visit a malicious page o...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: llvm: clang-21.1.8-1.1.hum1 aarch64, x8664 clang-analyzer-21.1.8-1.1.hum1 aarch64, x8664 clang-devel-21.1.8-1.1.hum1 aarch64, x8664 clang-libs-21.1.8-1.1.hum1 aarch64, x8664...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: php: php-8.5.5-1.1.hum1 aarch64, x8664 php-bcmath-8.5.5-1.1.hum1 aarch64, x8664 php-cli-8.5.5-1.1.hum1 aarch64, x8664 php-common-8.5.5-1.1.hum1 aarch64, x8664 php-dba-8.5.5-1.1.hum1 aarch64, x866...

Low: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: python-pip: python-pip-wheel-26.0.1-2.1.hum1 noarch python3-pip-26.0.1-2.1.hum1 noarch python-pip-26.0.1-2.1.hum1.src src...

Brave Software: Brave Shields Domain Reordering Leads to Origin Confusion

The Brave Shields feature was observed to reorder domain names, leading to potential origin confusion. Specifically, the domain "1.attacker.com" was displayed as "attacker.com.1", and "1.1.1.1.attacker.com" was displayed as "attacker.com.1.1.1.1". This behavior could potentially mislead users abo...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: perl: perl-5.42.2-524.1.hum1 aarch64, x8664 perl-Attribute-Handlers-1.03-524.1.hum1 noarch perl-AutoLoader-5.74-524.1.hum1 noarch perl-AutoSplit-5.74-524.1.hum1 noarch perl-B-1.89-524.1.hum1...

Moderate: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: perl-Storable: perl-Storable-3.37-522.1.hum1 aarch64, x8664 perl-Storable-tests-3.37-522.1.hum1 aarch64, x8664 perl-Storable-3.37-522.1.hum1.src src...

ALPINE-CVE-2026-40199

Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass. packipv6 includes the sentinel byte from packipv4 when building the packed representation of IPv4 mapped addresses like ::ffff:192.168.1.1. This produces an 18 byte value instead of...

CVE-2026-40199

Net::CIDR::Lite versions before 0.23 for Perl mishandles IPv4 mapped IPv6 addresses, which may allow IP ACL bypass. packipv6 includes the sentinel byte from packipv4 when building the packed representation of IPv4 mapped addresses like ::ffff:192.168.1.1. This produces an 18 byte value instead of...

Moderate: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: pam: pam-1.7.2-1.1.hum1 aarch64, x8664 pam-devel-1.7.2-1.1.hum1 aarch64, x8664 pam-doc-1.7.2-1.1.hum1 noarch pam-libs-1.7.2-1.1.hum1 aarch64, x8664 pam-1.7.2-1.1.hum1.src src...

Moderate: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: oniguruma: oniguruma-6.9.10-4.1.hum1 aarch64, x8664 oniguruma-devel-6.9.10-4.1.hum1 aarch64, x8664 oniguruma-6.9.10-4.1.hum1.src src...