ACME mini_httpd <1.30 - Local File Inclusion

ACME minihttpd before 1.30 is vulnerable to local file inclusion. id: CVE-2018-18778 info: name: ACME minihttpd 1.30 - Local File Inclusion author: DhiyaneshDK,dogasantos severity: medium description: ACME minihttpd before 1.30 is vulnerable to local file inclusion. impact: | Successful...

interactsh

An OOB interaction gathering server and client library Features • Usage • • • •...

GHSA-V5RC-CPWC-CFPR Lemur: Incomplete fix for GHSA-v2wp-frmc-5q3v -- ACME authority update endpoint allows non-admin to replace `acme_url` with internal IP, bypassing allowlist

Summary The fix for GHSA-v2wp-frmc-5q3v added validateacmeurl to reject acmeurl values not in ACMEDIRECTORYHOSTALLOWLIST, but the validation is only called at authority creation time POST. The authority update endpoint PUT /api/1/authorities/ accepts and stores arbitrary options -- including a...

Lemur: Server-Side Request Forgery via the ACME client following server-controlled URLs

Summary The ACME client used to issue certificates from Let's Encrypt / Google Public CA / private ACME CAs connects to an acmeurl, then issues requests to URLs that the ACME server returns in its directory/order/authorization/finalize responses - this is the classic ACME-client SSRF RFC 8555...

GHSA-XPMJ-WJCP-6PWW Lemur: Server-Side Request Forgery via the ACME client following server-controlled URLs

Summary The ACME client used to issue certificates from Let's Encrypt / Google Public CA / private ACME CAs connects to an acmeurl, then issues requests to URLs that the ACME server returns in its directory/order/authorization/finalize responses - this is the classic ACME-client SSRF RFC 8555...

CVE-2026-70666

Lemur manages TLS certificate creation. Prior to 1.9.3, an authority-role member could update acmeurl through PUT /api/1/authorities/ without revalidation and direct setupacmeclientnoretry to an attacker-controlled ACME server. ACME directory and order responses contain newNonce, newOrder,...

CVE-2026-55166

Lemur manages TLS certificate creation. Prior to 1.9.2, authenticated users could influence an ACME authority acmeurl without an effective server-side destination restriction and trigger AcmeHandler.setupacmeclient to make backend requests. An attacker could target cloud instance metadata or...

EUVD-2026-61155

Lemur manages TLS certificate creation. Prior to 1.9.3, an authority-role member could update acmeurl through PUT /api/1/authorities/ without revalidation and direct setupacmeclientnoretry to an attacker-controlled ACME server. ACME directory and order responses contain newNonce, newOrder,...

CVE-2026-70666 Lemur: Server-Side Request Forgery via the ACME client following server-controlled URLs

Lemur manages TLS certificate creation. Prior to 1.9.3, an authority-role member could update acmeurl through PUT /api/1/authorities/ without revalidation and direct setupacmeclientnoretry to an attacker-controlled ACME server. ACME directory and order responses contain newNonce, newOrder,...

CVE-2026-70666

CVE-2026-70666 is a Server-Side Request Forgery (SSRF) in Lemur (Netflix's TLS certificate manager), rated CVSS 7.4 HIGH . Two defects combine: the acme_url allowlist is validated only at authority creation, not on the PUT /api/1/authorities/ update path, and the ACME client follows server-suppli...

CVE-2026-70666 Lemur: Server-Side Request Forgery via the ACME client following server-controlled URLs

Lemur manages TLS certificate creation. Prior to 1.9.3, an authority-role member could update acmeurl through PUT /api/1/authorities/ without revalidation and direct setupacmeclientnoretry to an attacker-controlled ACME server. ACME directory and order responses contain newNonce, newOrder,...

CVE-2026-71303

In Lemur prior to 1.9.3, the PUT /api/1/authorities/ endpoint skipped the ACME_DIRECTORY_HOST_ALLOWLIST check applied at creation, letting any authority-role user set an internal or instance-metadata URL as the stored acme_url; the next issuance then made an outbound request via ClientV2.get_dire...

CVE-2026-71303 Lemur: Incomplete fix for CVE-2026-55166 -- ACME authority update endpoint allows non-admin to replace `acme_url` with internal IP, bypassing allowlist

Lemur manages TLS certificate creation. Prior to 1.9.3, validateacmeurl enforced ACMEDIRECTORYHOSTALLOWLIST when an authority was created, but PUT /api/1/authorities/ passed options to lemur/authorities/service.py without applying the same check. A user holding an authority role could replace the...

CVE-2026-55166 Lemur: any SSO-authenticated user achieves AWS IAM compromise and permanent PKI key access via ACME acme_url SSRF and creator-equality IDOR

Lemur manages TLS certificate creation. Prior to 1.9.2, authenticated users could influence an ACME authority acmeurl without an effective server-side destination restriction and trigger AcmeHandler.setupacmeclient to make backend requests. An attacker could target cloud instance metadata or...

CVE-2026-55166 Lemur: any SSO-authenticated user achieves AWS IAM compromise and permanent PKI key access via ACME acme_url SSRF and creator-equality IDOR

Lemur manages TLS certificate creation. Prior to 1.9.2, authenticated users could influence an ACME authority acmeurl without an effective server-side destination restriction and trigger AcmeHandler.setupacmeclient to make backend requests. An attacker could target cloud instance metadata or...

CVE-2026-55166

A low-privilege SSO-authenticated user chains three flaws in Netflix Lemur prior to 1.9.2: an unfiltered acme_url SSRF to AWS IMDS (CWE-918) exfiltrates worker STS credentials, while a creator-equality IDOR (CWE-639) at certificates/views.py:734 grants permanent private-key access after ownership...

CVE-2026-68005

An issue in ACME minihttpd 1.30 and prior allows a remote attacker to cause a denial of service via the HTTP request header parser in the handlerequest function...

PT-2026-76774

An issue in ACME mini httpd 1.30 and prior allows a remote attacker to cause a denial of service via the HTTP request header parser in the handle request function...

CVE-2026-68005

ACME mini_httpd versions 1.30 and prior are vulnerable to a remote denial of service via the HTTP request header parser in the handle_request() function. The vulnerability requires no authentication and can be triggered over the network with low complexity (CVSS 3.1: 7.5 HIGH ). CISA SSVC assesse...

CVE-2026-68005

An issue in ACME minihttpd 1.30 and prior allows a remote attacker to cause a denial of service via the HTTP request header parser in the handlerequest function...