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Fulcio

2 CVEs product

Monthly

CVE-2026-22772 Jan 12, 21:15 Go MEDIUM POC PATCH This Month

Fulcio versions prior to 1.8.5 allow unauthenticated attackers to bypass MetaIssuer URL validation through unanchored regex patterns, enabling blind SSRF attacks against internal services. Although the vulnerability is limited to read-only GET requests with no response exfiltration, attackers can probe internal networks to discover active services and infrastructure. Public exploit code exists for this medium-severity issue, and a patch is available in version 1.8.5.

SSRF Red Hat Fulcio Suse Linuxfoundation
NVD GitHub
CVSS 3.1
5.8
EPSS
0.0%
CVE-2025-66506 Dec 04, 22:15 Go HIGH PATCH This Week

A security vulnerability in Fulcio (CVSS 7.5). High severity vulnerability requiring prompt remediation. Vendor patch is available.

Information Disclosure Fulcio Linuxfoundation
NVD GitHub VulDB
CVSS 3.1
7.5
EPSS
0.0%
EPSS 0% CVSS 5.8
MEDIUM POC PATCH This Month

Fulcio versions prior to 1.8.5 allow unauthenticated attackers to bypass MetaIssuer URL validation through unanchored regex patterns, enabling blind SSRF attacks against internal services. Although the vulnerability is limited to read-only GET requests with no response exfiltration, attackers can probe internal networks to discover active services and infrastructure. Public exploit code exists for this medium-severity issue, and a patch is available in version 1.8.5.

SSRF Red Hat Fulcio +2
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

A security vulnerability in Fulcio (CVSS 7.5). High severity vulnerability requiring prompt remediation. Vendor patch is available.

Information Disclosure Fulcio Linuxfoundation
NVD GitHub VulDB

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