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openstack 16.2 vulnerabilities (CVE)

CVE records published for openstack 16.2, newest first. Follow to get an email when a new one appears.

19 results
6.8Medium
CVE-2026-114406

Ca-certificates: distrust emudhra intermediate ca certificates due to security concerns

Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Red Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSION; Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support

The system certificate authority (CA) store in Red Hat products, distributed via ca-certificates RPM packages, included multiple root CA certificates of authorities, which signed intermediate CA certificates with weak private keys issued by the eMudhra certif…

7.4High
CVE-2026-44393
Red Hat Red Hat OpenStack Platform 16.2; Red Hat Red Hat OpenShift Container Platform 4; Red Hat Red Hat OpenStack Platform 17.1; Red Hat Red Hat OpenStack Platform 18.0

An issue was discovered in OpenStack oslo.messaging 1.0.0 through 17.3.0. The oslo.messaging RabbitMQ driver does not perform TLS hostname verification when connecting to the message broker. When ssl_ca_file is configured, the driver enables certificate chain…

6.5Medium
CVE-2026-27145

Inefficient candidate hostname parsing in crypto/x509

Go standard library crypto/x509; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9; Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 10

(*x509.Certificate).VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name (SAN) entries. This caused strings.Split(host, ".") to execute repeatedly on the same input hostname. With a large DNS SAN list, verification c…

7.6High
CVE-2026-42790

nameConstraints DNS bypass via subject CommonName fallback in public_key hostname verification

Erlang OTP; Red Hat Red Hat OpenStack Platform 16.2; Red Hat Red Hat OpenStack Services on OpenShift 18.0; Red Hat Red Hat Hardened Images

Improper Certificate Validation vulnerability in Erlang OTP public_key (pubkey_cert and public_key modules) allows a DNS nameConstraints bypass via subject CommonName fallback in TLS hostname verification. Two flaws combine to allow a subordinate CA whose DN…

7.0High
CVE-2026-42789

Non-CA certificate accepted as intermediate issuer in public_key path validation

Erlang OTP; Red Hat Red Hat OpenStack Platform 16.2; Red Hat Red Hat OpenStack Services on OpenShift 18.0; Red Hat Red Hat Hardened Images

Improper Following of a Certificate's Chain of Trust vulnerability in Erlang OTP public_key (pubkey_cert module) allows a non-CA certificate to be accepted as an intermediate issuer, enabling certificate chain forgery. In lib/public_key/src/pubkey_cert.erl, …

9.6Critical
CVE-2026-39821

Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna

Go standard library net/http; Go standard library net/http/internal/http2; golang.org/x/net golang.org/x/net/idna; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8

The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode("xn--example-.com") incorrectly returns the name "example.com" rather than an error. This behavior can lead to privilege …

1.8%EPSS
9.1Critical
CVE-2026-39830

Invoking client can cause server deadlock on unexpected responses in golang.org/x/crypto/ssh

golang.org/x/crypto golang.org/x/crypto/ssh; Red Hat Cryostat 4 on RHEL 9; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 8

A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine could not be released by calling Close(), resulting in a resource leak per connection. Unsolicited glob…

7.5High
CVE-2026-39829

Invoking pathological RSA/DSA parameters may cause DoS in golang.org/x/crypto/ssh

golang.org/x/crypto golang.org/x/crypto/ssh; Red Hat Cryostat 4 on RHEL 9; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 8

The RSA and DSA public key parsers did not enforce size limits on key parameters. A crafted public key with an excessively large modulus or DSA parameter could cause several minutes of CPU consumption during signature verification. This could be triggered by …

7.5High
CVE-2026-33811

Crash when handling long CNAME response in net

Go standard library net; Red Hat Cryostat 4 on RHEL 9; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.

7.5High
CVE-2026-32280

Unexpected work during chain building in crypto/x509

Go standard library crypto/x509; Red Hat Cryostat 4 on RHEL 9; Red Hat HawtIO HawtIO 4.4.0; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8

During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 an…

7.5High
CVE-2026-32283

Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls

Go standard library crypto/tls; Red Hat Cryostat 4 on RHEL 9; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9

If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.

7.5High
CVE-2026-33810

Case-sensitive excludedSubtrees name constraints cause Auth Bypass in crypto/x509

Go standard library crypto/x509; Red Hat Cryostat 4 on RHEL 9; Red Hat HawtIO HawtIO 4.4.0; Red Hat Red Hat Enterprise Linux 10

When verifying a certificate chain containing excluded DNS constraints, these constraints are not correctly applied to wildcard DNS SANs which use a different case than the constraint. This only affects validation of otherwise trusted certificate chains, issu…

9.1Critical
CVE-2026-33186

gRPC-Go has an authorization bypass via missing leading slash in :path

grpc grpc-go; Red Hat Cryostat 4 on RHEL 9; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

gRPC-Go is the Go language implementation of gRPC. Versions prior to 1.79.3 have an authorization bypass resulting from improper input validation of the HTTP/2 `:path` pseudo-header. The gRPC-Go server was too lenient in its routing logic, accepting requests …

1.6%EPSS
7.5High
CVE-2026-25679

Incorrect parsing of IPv6 host literals in net/url

Go standard library net/url; Red Hat Cryostat 4 on RHEL 9; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9

url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.

7.5High
CVE-2026-27137

Incorrect enforcement of email constraints in crypto/x509

Go standard library crypto/x509; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Red Hat Enterprise Linux 9

When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly applied, and only the last constraint will be…

8.2High
CVE-2026-24708
OpenStack Nova; Red Hat Red Hat OpenStack Platform 16.2; Red Hat Red Hat OpenStack Platform 17.1 for RHEL 9; Red Hat Red Hat OpenStack Services on OpenShift 18.0

An issue was discovered in OpenStack Nova before 30.2.2, 31 before 31.2.1, and 32 before 32.1.1. By writing a malicious QCOW header to a root or ephemeral disk and then triggering a resize, a user may convince Nova's Flat image backend to call qemu-img withou…

7.5High
CVE-2025-61726

Memory exhaustion in query parameter parsing in net/url

Go standard library net/url; Red Hat Cryostat 4 on RHEL 9; Red Hat HawtIO HawtIO 4.3.1; Red Hat HawtIO HawtIO 4.4.0

The net/url package does not set a limit on the number of query parameters in a query. While the maximum size of query parameters in URLs is generally limited by the maximum request header size, the net/http.Request.ParseForm method can parse large URL-encode…

2.3%EPSS
7.5High
CVE-2026-23490

pyasn1 has a DoS vulnerability in decoder

pyasn1 pyasn1; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 8; Red Hat Red Hat Ansible Automation Platform 2.5 for RHEL 9; Red Hat Red Hat Ansible Automation Platform 2.6 for RHEL 9

pyasn1 is a generic ASN.1 library for Python. Prior to 0.6.2, a Denial-of-Service issue has been found that leads to memory exhaustion from malformed RELATIVE-OID with excessive continuation octets. This vulnerability is fixed in 0.6.2.

7.5High
CVE-2024-1394

Golang-fips/openssl: memory leaks in code encrypting and decrypting rsa payloads

Red Hat Red Hat Ansible Automation Platform 2.4 for RHEL 8; Red Hat Red Hat Ansible Automation Platform 2.4 for RHEL 9; Red Hat Red Hat Developer Tools; Red Hat Red Hat Enterprise Linux 8

A memory leak flaw was found in Golang in the RSA encrypting/decrypting code, which might lead to a resource exhaustion vulnerability using attacker-controlled inputs​. The memory leak happens in github.com/golang-fips/openssl/openssl/rsa.go#L113. The objects…

1.5%EPSS