logging 6.6 vulnerabilities (CVE)

CVE records published for logging 6.6, newest first. Follow to get an email when a new one appears.

8 results
9.1Critical
CVE-2026-42508

Invoking auth bypass via unenforced @revoked status in golang.org/x/crypto/ssh/knownhosts

golang.org/x/crypto golang.org/x/crypto/ssh/knownhosts; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 8; Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

Previously, a revoked 'SignatureKey' belonging to a CA was not correctly checked for revocation. Now, both the 'key' and 'key.SignatureKey' are checked for @revoked.

6.9%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…

5.3Medium
CVE-2026-39835

Invoking server panic during CheckHostKey/Authenticate 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

SSH servers which use CertChecker as a public key callback without setting IsUserAuthority or IsHostAuthority could be caused to panic by a client presenting a certificate. CertChecker now returns an error instead of panicking when these callbacks are nil.

9.1Critical
CVE-2026-39832

Invoking agent constraints dropped when forwarding keys in golang.org/x/crypto/ssh/agent

golang.org/x/crypto golang.org/x/crypto/ssh/agent; Red Hat Red Hat Enterprise Linux 10; Red Hat Red Hat Enterprise Linux 8; Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service

When adding a key to a remote agent constraint extensions such as restrict-destination-v00@openssh.com were not serialized in the request. Destination restrictions were silently stripped when forwarding keys, allowing unrestricted use of the key on the remote…

6.3Medium
CVE-2026-39828

Invoking bypass of certificate restrictions in golang.org/x/crypto/ssh

golang.org/x/crypto golang.org/x/crypto/ssh; Red Hat Cryostat 4 on RHEL 9; Red Hat RHEM 1.0 for RHEL 9; Red Hat RHEM 1.1 for RHEL 10

When an SSH server authentication callback returned PartialSuccessError with non-nil Permissions, those permissions were silently discarded, potentially dropping certificate restrictions such as force-command after a second factor succeeded. Returning non-nil…

8.7High
CVE-2026-35469

SpdyStream: DOS on CRI

moby spdystream; Red Hat Red Hat OpenShift Container Platform 4.19; Red Hat RHEM 1.0 for RHEL 9; Red Hat RHEM 1.1 for RHEL 10

spdystream is a Go library for multiplexing streams over SPDY connections. In versions 0.5.0 and below, the SPDY/3 frame parser does not validate attacker-controlled counts and lengths before allocating memory. Three allocation paths are affected: the SETTING…

7.5High
CVE-2026-29181

OpenTelemetry-Go multi-value `baggage` header extraction causes excessive allocations (remote dos amplification)

open-telemetry opentelemetry-go; Red Hat Cert Manager support for Red Hat OpenShift release 1.19; Red Hat Cluster Observability Operator 1.5.0; Red Hat Logging Subsystem for Red Hat OpenShift 6.6

OpenTelemetry-Go is the Go implementation of OpenTelemetry. From 1.36.0 to 1.40.0, multi-value baggage: header extraction parses each header field-value independently and aggregates members across values. This allows an attacker to amplify cpu and allocations…