CVE-2026-22772

Fulcio (OIDC code-signing CA) prior to 1.8.5 uses an unanchored regex in metaRegex(), allowing an attacker to bypass MetaIssuer URL validation and trigger Server-Side Request Forgery (SSRF) to internal services. The vulnerability can enable blind SSRF probes to internal networks or services reach...

CVE-2026-22772 Fulcio vulnerable to Server-Side Request Forgery (SSRF) via MetaIssuer Regex Bypass

Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect OIDC identity. Prior to 1.8.5, Fulcio's metaRegex function uses unanchored regex, allowing attackers to bypass MetaIssuer URL validation and trigger SSRF to arbitrary internal services. Since the SSRF on...

CVE-2026-22772 Fulcio vulnerable to Server-Side Request Forgery (SSRF) via MetaIssuer Regex Bypass

Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect OIDC identity. Prior to 1.8.5, Fulcio's metaRegex function uses unanchored regex, allowing attackers to bypass MetaIssuer URL validation and trigger SSRF to arbitrary internal services. Since the SSRF on...

CVE-2026-22772

Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect OIDC identity. Prior to 1.8.5, Fulcio's metaRegex function uses unanchored regex, allowing attackers to bypass MetaIssuer URL validation and trigger SSRF to arbitrary internal services. Since the SSRF on...

PT-2026-2303

Name of the Vulnerable Software and Affected Versions Fulcio versions prior to 1.8.5 Description Fulcio is a certificate authority for issuing code signing certificates for an OpenID Connect OIDC identity. The metaRegex function uses unanchored regular expressions, potentially allowing attackers ...

Fulcio 代码问题漏洞

Fulcio is a certificate authority open-sourced by sigstore. A code issue vulnerability exists in Fulcio versions prior to 1.8.5 that stems from the use of unanchored regular expressions for MetaIssuer URL validation, which could lead to bypassing validation and triggering a blind SSRF attack...

UBUNTU-CVE-2026-22703

Cosign provides code signing and transparency for containers and binaries. Prior to versions 2.6.2 and 3.0.4, Cosign bundle can be crafted to successfully verify an artifact even if the embedded Rekor entry does not reference the artifact's digest, signature or public key. When verifying a Rekor...

CVE-2026-22703 Cosign verification accepts any valid Rekor entry under certain conditions

Cosign provides code signing and transparency for containers and binaries. Prior to versions 2.6.2 and 3.0.4, Cosign bundle can be crafted to successfully verify an artifact even if the embedded Rekor entry does not reference the artifact's digest, signature or public key. When verifying a Rekor...

Amazon Linux 2023 : runfinch-finch (ALAS2023-2025-1336)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1336 advisory. SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read...

CVE-2025-47908 vulnerabilities

Vulnerabilities for packages: rekor, prometheus-alertmanager, grafana-mimir, fulcio, timestamp-authority, cortex...

Medium: runfinch-finch

Issue Overview: SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read. CVE-2025-47914 SSH servers parsing GSSAPI authentication requests do not validate the number...

Amazon Linux 2 : runfinch-finch, --advisory ALAS2DOCKER-2025-092 (ALASDOCKER-2025-092)

The version of runfinch-finch installed on the remote host is prior to 1.10.0-1. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2DOCKER-2025-092 advisory. SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause...

Medium: runfinch-finch

Issue Overview: SSH Agent servers do not validate the size of messages when processing new identity requests, which may cause the program to panic if the message is malformed due to an out of bounds read. CVE-2025-47914 SSH servers parsing GSSAPI authentication requests do not validate the number...

PT-2026-2253

Name of the Vulnerable Software and Affected Versions Cosign versions prior to 2.6.2 and 3.0.4 Description Cosign is a tool providing code signing and transparency for containers and binaries. Prior to versions 2.6.2 and 3.0.4, a crafted Cosign bundle could successfully verify an artifact even if...

SUSE CVE-2025-66506

Fulcio is a free-to-use certificate authority for issuing code signing certificates for an OpenID Connect OIDC identity. Prior to 1.8.3, function identity.extractIssuerURL splits via a call to strings.Split its argument which is untrusted data on periods. As a result, in the face of a malicious...

CVE-2025-66506

A flaw was found in Fulcio, a free-to-use certificate authority. This vulnerability allows a denial of service DoS due to excessive memory allocation when processing a malicious OpenID Connect OIDC identity token containing numerous period characters...

GO-2025-4193 Fulcio allocates excessive memory during token parsing in github.com/sigstore/fulcio

Fulcio allocates excessive memory during token parsing in github.com/sigstore/fulcio...

Linux Distros Unpatched Vulnerability : CVE-2025-66506

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Fulcio is a free-to-use certificate authority for issuing code signing certificates for an OpenID Connect OIDC identity. Prior to 1.8.3, function...

EUVD-2025-201293

Fulcio allocates excessive memory during token parsing...

Fulcio allocates excessive memory during token parsing

Function identity.extractIssuerURL currently splits via a call to strings.Split its argument which is untrusted data on periods. As a result, in the face of a malicious request with an invalid OIDC identity token in the payload containing many period characters, a call to extractIssuerURL incurs...