CVE-2026-25833

Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffer overflow in the x509inetptonipv6 function...

CVE-2026-34875

CVE-2026-34875 concerns a buffer overflow in the public key export path for FFDH keys in Mbed TLS up to version 3.6.5 and TF-PSA-Crypto 1.0.0. The evidence in the connected documents confirms the root cause as a buffer overflow during public key export, affecting the FFDH key handling. No exploit...

Medium: kernel6.18

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: audit: add fchmodat2 to change attributes class CVE-2025-71239 In the Linux kernel, the following vulnerability has been resolved: fs: ntfs3: fix infinite loop in attrloadrunsrange on inconsistent metadata...

CVE-2026-34871

An issue was discovered in Mbed TLS before 3.6.6 and 4.x before 4.1.0 and TF-PSA-Crypto before 1.1.0. There is a Predictable Seed in a Pseudo-Random Number Generator PRNG...

CVE-2026-34871

An issue was discovered in Mbed TLS before 3.6.6 and 4.x before 4.1.0 and TF-PSA-Crypto before 1.1.0. There is a Predictable Seed in a Pseudo-Random Number Generator PRNG...

CVE-2026-34874

An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0. There is a NULL pointer dereference in distinguished name parsing that allows an attacker to write to address 0...

CVE-2026-34875

An issue was discovered in Mbed TLS through 3.6.5 and TF-PSA-Crypto 1.0.0. A buffer overflow can occur in public key export for FFDH keys...

CVE-2026-25833

Mbed TLS 3.5.0 to 3.6.5 fixed in 3.6.6 and 4.1.0 has a buffer overflow in the x509inetptonipv6 function...

CVE-2026-34874

An issue was discovered in Mbed TLS through 3.6.5 and 4.x through 4.0.0. There is a NULL pointer dereference in distinguished name parsing that allows an attacker to write to address 0...

CVE-2026-34872

An issue was discovered in Mbed TLS 3.5.x and 3.6.x through 3.6.5 and TF-PSA-Crypto 1.0. There is a lack of contributory behavior in FFDH due to improper input validation. Using finite-field Diffie-Hellman, the other party can force the shared secret into a small set of values lack of contributor...

Amazon Linux 2023 : openssl, openssl-devel, openssl-fips-provider-latest (ALAS2023-2026-1522)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-1522 advisory. Issue summary: An OpenSSL TLS 1.3 server may fail to negotiate the expected preferred key exchange group when its key exchange group configuration includes the default by using the 'DEFAULT' keyword...

Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1515)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1515 advisory. In the Linux kernel, the following vulnerability has been resolved: audit: add fchmodat2 to change attributes class CVE-2025-71239 In the Linux kernel, the following vulnerability has been...

Selection of Less-Secure Algorithm During Negotiation ('Algorithm Downgrade')

Overview Affected versions of this package are vulnerable to Selection of Less-Secure Algorithm During Negotiation 'Algorithm Downgrade' in the TLS 1.3 session resumption logic if the subsequent ClientHello negotiates TLS 1.2 back. An attacker can gain unauthorized access by impersonating a...

Improperly Implemented Security Check for Standard

Overview Affected versions of this package are vulnerable to Improperly Implemented Security Check for Standard in the mbedtlssslconfsigalgs function. An attacker can reduce the security strength of cryptographic operations by forcing the use of weaker algorithms, which may result in information...

Updated python-openssl packages fix security vulnerabilities

pyOpenSSL allows TLS connection bypass via unhandled callback exception in settlsextservernamecallback. CVE-2026-27448 pyOpenSSL DTLS cookie callback buffer overflow. CVE-2026-27459...

crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption

A flaw was found in the crypto/tls component. This vulnerability occurs during Transport Layer Security TLS session resumption when certificate authority CA settings are modified between the initial and resumed handshakes. An attacker could exploit this to bypass certificate validation, allowing ...

crypto/tls: crypto/tls: Incorrect certificate validation during TLS session resumption

A flaw was found in the crypto/tls component. This vulnerability occurs during Transport Layer Security TLS session resumption when certificate authority CA settings are modified between the initial and resumed handshakes. An attacker could exploit this to bypass certificate validation, allowing ...

Improper Certificate Validation

github.com/envoyproxy/envoy is vulnerable to improper certificate validation. The vulnerability is due to incorrect handling of embedded null bytes \0 in OTHERNAME SAN values within mTLS certificate matching, which allows an attacker to bypass certificate validation and achieve unauthorized acces...

Moderate: Red Hat Security Advisory: nginx security update

An update for nginx is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Security Bulletin: Vulnerability in IBM Java, Websphere, OpenSSL, libcurl, and Apache Commons may affect IBM Storage Protect Backup-Archive Client, IBM Storage Protect for Virtual Environments and IBM Storage Protect for Space Management

Summary IBM Spectrum Protect Backup-Archive Client, IBM Storage Protect for Virtual Environments and IBM Storage Protect for Space Management can be affected by logging and security vulnerabilities. This update improves reliability of Java object property handling, modern logging frameworks and...