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’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,...

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

Summary 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. This vulnerability, CVE-2026-5052, is fixed in Vault...

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,...

ACME Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider

Summary The webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to write attacker-influenced content to any path writable by the lego...

GHSA-QQX8-2XMM-JRV8 ACME Lego: Arbitrary File Write via Path Traversal in Webroot HTTP-01 Provider

Summary The webroot HTTP-01 challenge provider in lego is vulnerable to arbitrary file write and deletion via path traversal. A malicious ACME server can supply a crafted challenge token containing ../ sequences, causing lego to write attacker-influenced content to any path writable by the lego...

PT-2026-33383

Name of the Vulnerable Software and Affected Versions Lego versions prior to 4.34.0 Description The webroot HTTP-01 challenge provider in Lego is subject to arbitrary file write and deletion via path traversal. A malicious ACME server can provide a crafted challenge token containing ../ sequences...

GHSA-9QQ8-CGCV-QMC9 Step CA affected by an index out of bounds panic in TPM attestation EKU validation

Summary An attacker can trigger an index out-of-bounds panic in Step CA by sending a crafted attestation key AK certificate with an empty Extended Key Usage EKU extension during TPM device attestation. Details When processing a device-attest-01 ACME challenge using TPM attestation, Step CA...

CVE-2026-40097

Step CA is an online certificate authority for secure, automated certificate management for DevOps. From 0.24.0 to before 0.30.0-rc3, an attacker can trigger an index out-of-bounds panic in Step CA by sending a crafted attestation key AK certificate with an empty Extended Key Usage EKU extension...

CVE-2026-40097 Step CA affected by an index out of bounds panic in TPM attestation EKU validation

Step CA is an online certificate authority for secure, automated certificate management for DevOps. From 0.24.0 to before 0.30.0-rc3, an attacker can trigger an index out-of-bounds panic in Step CA by sending a crafted attestation key AK certificate with an empty Extended Key Usage EKU extension...

CVE-2026-40097

Step CA is an online certificate authority for secure, automated certificate management for DevOps. From 0.24.0 to before 0.30.0-rc3, an attacker can trigger an index out-of-bounds panic in Step CA by sending a crafted attestation key AK certificate with an empty Extended Key Usage EKU extension...

CVE-2026-40097 Step CA affected by an index out of bounds panic in TPM attestation EKU validation

Step CA is an online certificate authority for secure, automated certificate management for DevOps. From 0.24.0 to before 0.30.0-rc3, an attacker can trigger an index out-of-bounds panic in Step CA by sending a crafted attestation key AK certificate with an empty Extended Key Usage EKU extension...

CVE-2026-40097

Step CA is an online certificate authority for secure, automated certificate management for DevOps. From 0.24.0 to before 0.30.0-rc3, an attacker can trigger an index out-of-bounds panic in Step CA by sending a crafted attestation key AK certificate with an empty Extended Key Usage EKU extension...

PT-2026-31991

Name of the Vulnerable Software and Affected Versions Step CA versions 0.24.0 through 0.30.0-rc3 Description An attacker can trigger an index out-of-bounds panic in Step CA by sending a crafted attestation key AK certificate with an empty Extended Key Usage EKU extension during TPM device...

Security Bulletin: IBM App Connect Enterprise Certified Container operator is vulnerable to denial of service (CVE-2026-25518)

Summary Golang module cert-manager/cert-manager is used by IBM App Connect Enterprise Certified Container for interacting with the Kubernetes cluster cert-manager. IBM App Connect Enterprise Certified Container operator is vulnerable to denial of service. This bulletin provides patch information ...

PT-2026-29944

nginx-UI has Unencrypted Storage of DNS API Tokens and ACME Private Keys in github.com/0xJacky/nginx-ui...

CVE-2026-33030

CVE-2026-33030 affects nginx-ui up to version 2.3.3. An Insecure Direct Object Reference (IDOR) vulnerability allows any authenticated user to access, modify, or delete resources owned by other users due to lack of user ownership checks in the base model and endpoints. Some sources (GHSA/OSV) add...

CVE-2026-33030 Nginx UI: Unencrypted Storage of DNS API Tokens and ACME Private Keys

Nginx UI is a web user interface for the Nginx web server. In versions 2.3.3 and prior, Nginx-UI contains an Insecure Direct Object Reference IDOR vulnerability that allows any authenticated user to access, modify, and delete resources belonging to other users. The application's base Model struct...