K000163170: Mbed TLS vulnerability CVE-2026-34877

Security Advisory Description An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0. Insufficient protection of serialized SSL context or session structures allows an attacker who can modify the serialized structures to induce memory corruption, leading to arbitrary...

CVE-2026-59825

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.4.19 and from 4.5.0 until 4.5.12, Mastodon's app/models/concerns/user/ldapauthenticable.rb mutates OpenSSL::SSL::SSLContext::DEFAULTPARAMS when LDAP authentication uses LDAPTLSNOVERIFY=true, disabling SSL and T...

Apache Airflow missing Certificate Validation

Apache Airflow SMTP Provider before 1.3.0, Apache Airflow IMAP Provider before 3.3.0, andApache Airflow before 2.7.0 are affected by theValidation of OpenSSL Certificate vulnerability.The default SSL context with SSL library did not check a server's X.509certificate. Instead, the code accepted an...

Improper Certificate Validation vulnerability in Apache Airflow FTP Provider

Improper Certificate Validation vulnerability in Apache Airflow FTP Provider.The FTP hook lacks complete certificate validation in FTPTLS connections, which can potentially be leveraged. Implementing proper certificate validation by passing context=ssl.createdefaultcontext during FTPTLS...

CVE-2026-50010

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, SimpleTrustManagerFactory.engineGetTrustManagers and related paths wrap any user-supplied plain X509TrustManager in X509TrustManagerWrapper, which extends...

UBUNTU-CVE-2026-50010

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, SimpleTrustManagerFactory.engineGetTrustManagers and related paths wrap any user-supplied plain X509TrustManager in X509TrustManagerWrapper, which extends...

curl: TLS conn reuse and session cache ignore fsslctx callback and ssl_config_data flags ( incomplete fix variant of 7541ae569 )

Summary matchsslprimaryconfig in lib/vtls/vtls.c:194 and the session-cache key built by cfsslpeerkeybuild in lib/vtls/vtlsscache.c:240 both compare only struct sslprimaryconfig fields when deciding whether to reuse a TLS connection or cached session. Several fields that materially change the TLS...

GHSA-3G76-F9XQ-8VP6 Vert.x has a DoS via unbounded server-side SNI SslContext cache growth

Potential unbounded server-side SNI SslContext cache growth in Vert.x TLS handling, with = resource-exhaustion / DoS impact. On affected versions, matching server-side SNI names are cached via computeIfAbsentserverName, ... in a serverName-keyed SslContext cache. The implementation differs slight...

CLSA-2026-1778233301 python3.9: Fix of 7 CVEs

CVE-2025-1795: fix incorrect parsing of email addresses with special chars - CVE-2025-4516: fix use-after-free in unicode-escape decoder with non-strict error handler - CVE-2025-6069: fix quadratic complexity in HTMLParser special input - CVE-2025-8291: fix zip64 end-of-central-directory record...

CVE-2026-40557

Improper Certificate Validation via Global SSL Context Downgrade in Apache Storm Prometheus Reporter Versions Affected: from 2.6.3 to 2.8.6 Description: In production deployments where an administrator enables storm.daemon.metrics.reporter.plugin.prometheus.skiptlsvalidation by default it is...

GHSA-X8MH-94WC-33GV apache-airflow-providers-smtp: No certificate validation on SMTP STARTTLS connections in SMTP provider

Apache Airflow's SMTP provider SmtpHook called Python's smtplib.SMTP.starttls without an SSL context, so no certificate validation was performed on the TLS upgrade. A man-in-the-middle between the Airflow worker and the SMTP server could present a self-signed certificate, complete the STARTTLS...

CVE-2026-40557

Improper Certificate Validation via Global SSL Context Downgrade in Apache Storm Prometheus Reporter Versions Affected: from 2.6.3 to 2.8.6 Description: In production deployments where an administrator enables storm.daemon.metrics.reporter.plugin.prometheus.skiptlsvalidation by default it is...

EUVD-2026-25846

Improper Certificate Validation via Global SSL Context Downgrade in Apache Storm Prometheus Reporter Versions Affected: from 2.6.3 to 2.8.6 Description: In production deployments where an administrator enables storm.daemon.metrics.reporter.plugin.prometheus.skiptlsvalidation by default it is...

CVE-2026-40557 Apache Storm Prometheus Reporter: Disabling TLS verification for Prometheus Reporter also disables it for all other connections

Improper Certificate Validation via Global SSL Context Downgrade in Apache Storm Prometheus Reporter Versions Affected: from 2.6.3 to 2.8.6 Description: In production deployments where an administrator enables storm.daemon.metrics.reporter.plugin.prometheus.skiptlsvalidation by default it is...

PT-2026-35413

Improper Certificate Validation via Global SSL Context Downgrade in Apache Storm Prometheus Reporter Versions Affected: from 2.6.3 to 2.8.6 Description: In production deployments where an administrator enables storm.daemon.metrics.reporter.plugin.prometheus.skip tls validation by default it is...

Nutanix AOS : Multiple Vulnerabilities (NXSA-AOS-7.5.1)

The version of AOS installed on the remote host is prior to 7.5.1. It is, therefore, affected by multiple vulnerabilities as referenced in the NXSA-AOS-7.5.1 advisory. - A vulnerability has been found in GNU Binutils 2.45. The affected element is the function elfswapshdr in the library...

CVE-2026-34877

An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0. Insufficient protection of serialized SSL context or session structures allows an attacker who can modify the serialized structures to induce memory corruption, leading to arbitrary code execution. This is cause...

CVE-2026-34877: Execution with Unnecessary Privileges

An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0. Insufficient protection of serialized SSL context or session structures allows an attacker who can modify the serialized structures to induce memory corruption, leading to arbitrary code execution. This is cause...

curl: HackerOne Vulnerability Report: libcurl SSL/TLS Identity Leakage via Insecure Connection Reuse

Summary libcurl contains a critical logic flaw in its connection reuse mechanism where transfers using the CURLOPTSSLCTXFUNCTION SSL context callback to establish a specific identity e.g., via client certificates can have their connections incorrectly reused by subsequent, unauthenticated transfe...

EulerOS 2.0 SP12 : python3 (EulerOS-SA-2026-1376)

According to the versions of the python3 packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : When building nested elements using xml.dom.minidom methods such as appendChild that have a dependency on clearidcache the algorithm is quadratic...