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-2026-673

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-2026-684 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-2026-708

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-2026-704 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,...

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...

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...

SUSE-SU-2026:22656-1 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...

PT-2026-58910

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...

SUSE-SU-2026:22643-1 Security update for go1.25

This update for go1.25 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...

crypto/tls: golang: Go crypto/tls: Information disclosure in Encrypted Client Hello

A flaw was found in the crypto/tls package in Go. Handshakes utilizing Encrypted Client Hello ECH could lead to de-anonymization by a passive network observer. This is due to the disclosure of pre-shared key identities within the unencrypted client hello, allowing an attacker to potentially link...

OPENSUSE-SU-2026:21321-1 Security update for go1.26-openssl

This update for go1.26-openssl 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...

SUSE-SU-2026:22641-1 Security update for go1.26-openssl

This update for go1.26-openssl 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...

SUSE SLED15 / SLES15 Security Update : go1.26 (SUSE-SU-2026:2818-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2026:2818-1 advisory. This update for go1.26 fixes the following issues - Update to version go1.26.5 bsc1255111 - CVE-2026-39822: os...

crypto/tls: golang: Go crypto/tls: Information disclosure in Encrypted Client Hello

A flaw was found in the crypto/tls package in Go. Handshakes utilizing Encrypted Client Hello ECH could lead to de-anonymization by a passive network observer. This is due to the disclosure of pre-shared key identities within the unencrypted client hello, allowing an attacker to potentially link...

crypto/tls: golang: Go crypto/tls: Information disclosure in Encrypted Client Hello

A flaw was found in the crypto/tls package in Go. Handshakes utilizing Encrypted Client Hello ECH could lead to de-anonymization by a passive network observer. This is due to the disclosure of pre-shared key identities within the unencrypted client hello, allowing an attacker to potentially link...

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. Patch Instructions: To install this SUSE update use the SU...

CVE-2026-11404

Cesanta Mongoose before 7.22 contains an out-of-bounds read in the built-in TLS server function mgtlsserverrecvhello, which uses an attacker-controlled sessionidlen byte from a TLS ClientHello as a buffer index without validating it against the length of received data. A remote, unauthenticated...