Moderate: Red Hat Security Advisory: Red Hat Certificate System 10.4.4 security and bug fix update for RHEL 8

An update for Red Hat Certificate System 10.4 for RHEL 8.6 is now available. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability...

RHEL 8 : Red Hat Certificate System 10.4.4 security update for RHEL 8 (Moderate) (RHSA-2026:67110)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:67110 advisory. Red Hat Certificate System RHCS is a complete implementation of an enterprise software system designed to manage enterprise Public Key Infrastructur...

SUSE CVE-2026-5052

Vault's PKI engine's ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0,...

CVE-2026-10303 ServerCo getssl ACME shell script path injection

In ServerCo getssl version 2.49 and prior, the ACME challenge token returned to the client was not strictly validated against RFC 8555 before being used in challenge-file handling, allowing a maliciously crafted token to influence local path/filename usage during validation. An attacker who can...

acme-validation-propagation (>=0.1.5, <=0.1.8), agnostic (>=0.2.1, <=0.2.6) +37 more potentially affected by unknown CVE via hickory-proto (>=0.24.4, <=0.25.0-alpha.5)

hickory-proto CARGO version =0.24.4, =0.1.5, =0.2.1, =0.24.0, =0.9.3, =0.1.0, =0.5.0, =0.1.0, =0.0.1, =0.2.6, =0.2.8 - getip 0.1.0 and more Source cves: unknown CVE Source advisory: OSV:GHSA-Q2QQ-HMJ6-3WPP...

BIT-VAULT-2026-5052 Vault Vulnerable to Server-Side Request Forgery in ACME Challenge Validation via Attacker-Controlled DNS

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0,...

HashiCorp Vault has Server-Side Request Forgery in ACME Challenge Validation via Attacker-Controlled DNS

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0,...

GHSA-8R5M-3F66-QPR3 HashiCorp Vault has Server-Side Request Forgery in ACME Challenge Validation via Attacker-Controlled DNS

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0,...

CVE-2026-5052

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0,...

CVE-2026-5052

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0,...

CVE-2026-5052

Vault’s PKI engine ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges, creating potential SSRF and information disclosure against internal targets. The issue affects Vault Community Edition up to 2.0.0 and Vault Enterprise up to 2.0.0, as well as 1.21.5, ...

CVE-2026-5052 Vault Vulnerable to Server-Side Request Forgery in ACME Challenge Validation via Attacker-Controlled DNS

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0,...

CVE-2026-5052 Vault Vulnerable to Server-Side Request Forgery in ACME Challenge Validation via Attacker-Controlled DNS

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0,...

CVE-2026-5052 Vault Vulnerable to Server-Side Request Forgery in ACME Challenge Validation via Attacker-Controlled DNS

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0,...

PT-2026-33400

Name of the Vulnerable Software and Affected Versions HashiCorp Vault Community Edition versions prior to 2.0.0 HashiCorp Vault Enterprise versions prior to 1.19.16 HashiCorp Vault Enterprise versions 1.19.16 through 1.20.9 HashiCorp Vault Enterprise versions 1.20.10 through 1.21.4 HashiCorp Vaul...

CVE-2026-5052: Server-Side Request Forgery (SSRF)

Vault’s PKI engine’s ACME validation did not reject local targets when issuing http-01 and tls-alpn-01 challenges. This may lead to these requests being sent to local network targets, potentially leading to information disclosure. Fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0,...

BIT-CERT-MANAGER-2026-25518 cert-manager-controller DoS via Specially Crafted DNS Response

cert-manager adds certificates and certificate issuers as resource types in Kubernetes clusters, and simplifies the process of obtaining, renewing and using those certificates. In versions from 1.18.0 to before 1.18.5 and from 1.19.0 to before 1.19.3, the cert-manager-controller performs DNS...

Cloudflare Fixes ACME Validation Bug Allowing WAF Bypass to Origin Servers

Cloudflare has addressed a security vulnerability impacting its Automatic Certificate Management Environment ACME validation logic that made it possible to bypass security controls and access origin servers. "The vulnerability was rooted in how our edge network processed requests destined for the...