Amazon Linux 2023 : golang-github-burntsushi-toml, golang-github-burntsushi-toml-devel (ALAS2023-2026-1978)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1978 advisory. On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /...

Medium: golang-github-burntsushi-toml-test

Issue Overview: On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /. For example, 'root.Open"symlink/"' will open "symlink" even when "symlink" is a symboli...

SUSE SLES16 Security Update : go1.25 (SUSE-SU-2026:22643-1)

The remote SUSE Linux SLES16 / SLESSAP16 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:22643-1 advisory. This update for go1.25 fixes the following issues - Update to version go1.25.12 bsc1244485. - CVE-2026-25679: net/url: reject IPv6...

DEBIAN-CVE-2026-44452

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 8dc37cb, when h2o receives a ClientHello message over TLS or QUIC and it contains a zero-length SNI extension, the h2o server runs over the zero-length hostname while trying to copy the hostname, assuming that it ...

CVE-2026-44452

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 8dc37cb, when h2o receives a ClientHello message over TLS or QUIC and it contains a zero-length SNI extension, the h2o server runs over the zero-length hostname while trying to copy the hostname, assuming that it ...

CVE-2026-44452 h2o is vulnerable to heap overrun

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 8dc37cb, when h2o receives a ClientHello message over TLS or QUIC and it contains a zero-length SNI extension, the h2o server runs over the zero-length hostname while trying to copy the hostname, assuming that it ...

CVE-2026-44452

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. Prior to commit 8dc37cb, when h2o receives a ClientHello message over TLS or QUIC and it contains a zero-length SNI extension, the h2o server runs over the zero-length hostname while trying to copy the hostname, assuming that it ...

CVE-2026-44452

CVE-2026-44452 affects the h2o HTTP server (supports HTTP/1.x, 2, 3). Affected behavior occurs when a TLS/QUIC ClientHello contains a zero-length SNI extension; h2o can attempt to copy the hostname assuming NULL-termination, causing a heap/segmentation fault that may enable a denial-of-service. T...

Golang 1.25.x < 1.25.12 / 1.26.x < 1.26.5 Multiple Vulnerabilities

The version of Golang running on the remote host is 1.25.x prior to 1.25.12 or 1.26.x prior to 1.26.5. It is, therefore, affected by multiple vulnerabilities: - On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component...

openSUSE 16 Security Update : go1.26 (openSUSE-SU-2026:21341-1)

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21341-1 advisory. This update for go1.26 fixes the following issues - Update to version go1.26.5 bsc1255111. - CVE-2026-39822: os: Root escape via symlink plus...

Security update for go1.25-openssl

This update for go1.25-openssl fixes the following issues Update to version go1.25.12 bsc1244485. CVE-2026-25679: net/url: reject IPv6 literal not at start of host bsc1259264. CVE-2026-27139: os: FileInfo can escape from a Root bsc1259268. CVE-2026-27142: html/template: URLs in meta content...

SUSE-SU-2026:3046-1 Security update for go1.25-openssl

This update for go1.25-openssl fixes the following issues - Update to version go1.25.12 bsc1244485. - CVE-2026-25679: net/url: reject IPv6 literal not at start of host bsc1259264. - CVE-2026-27139: os: FileInfo can escape from a Root bsc1259268. - CVE-2026-27142: html/template: URLs in meta conte...

JLSEC-2026-684 A malicious TLS1.2 server can force a TLS1.3 client with downgrade capability to use a ciphersuite...

A malicious TLS1.2 server can force a TLS1.3 client with downgrade capability to use a ciphersuite that it did not agree to and achieve a successful connection. This is because, aside from the extensions, the client was skipping fully parsing the server hello...

JLSEC-2026-673

In wolfSSL before 5.5.1, malicious clients can cause a buffer overflow during a TLS 1.3 handshake. This occurs when an attacker supposedly resumes a previous TLS session. During the resumption Client Hello a Hello Retry Request must be triggered. Both Client Hellos are required to contain a list ...

JLSEC-2026-708

Heap Overflow in TLS 1.3 ECH parsing. An integer underflow existed in ECH extension parsing logic when calculating a buffer length, which resulted in writing beyond the bounds of an allocated buffer. Note that in wolfSSL, ECH is off by default, and the ECH standard is still evolving...

JLSEC-2026-679 wolfSSL prior to 5.6.6 did not check that messages in one (D)TLS record do not span key boundaries

wolfSSL prior to 5.6.6 did not check that messages in one DTLS record do not span key boundaries. As a result, it was possible to combine DTLS messages using different keys into one DTLS record. The most extreme edge case is that, in DTLS 1.3, it was possible that an unencrypted DTLS 1.3 record...

JLSEC-2026-711 Stack Buffer Overflow in `wc_HpkeLabeledExtract` via Oversized ECH Config

Stack Buffer Overflow in wcHpkeLabeledExtract via Oversized ECH Config. A vulnerability existed in wolfSSL 5.8.4 ECH Encrypted Client Hello support, where a maliciously crafted ECH config could cause a stack buffer overflow on the client side, leading to potential remote execution and client...

JLSEC-2026-704 Missing required cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in...

Missing required cryptographic step in the TLS 1.3 client HelloRetryRequest handshake logic in wolfSSL could lead to a compromise in the confidentiality of TLS-protected communications via a crafted HelloRetryRequest followed by a ServerHello message that omits the required keyshare extension,...

BIT-GOLANG-2026-42505 Invoking Encrypted Client Hello privacy leak in crypto/tls

Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello...

OPENSUSE-SU-2026:21341-1 Security update for go1.26

This update for go1.26 fixes the following issues - Update to version go1.26.5 bsc1255111. - CVE-2026-39822: os: Root escape via symlink plus trailing slash bsc1271014. - CVE-2026-42505: crypto/tls: omit PSK in ECH outer client hello bsc1271015...