Bug 2446750 (CVE-2026-31959)

Summary: CVE-2026-31959 github.com/anchore/quill: Quill: Sensitive data exfiltration via Server-Side Request Forgery (SSRF)
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: agarcial, aoconnor, asegurap, jburrell
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Quill. This Server-Side Request Forgery (SSRF) vulnerability occurs when Quill attempts to fetch Apple notarization submission logs. An attacker, capable of tampering with API responses from Apple's notarization service (e.g., in environments with TLS-intercepting proxies), can supply a malicious URL. This causes the Quill client to make requests to arbitrary internal or external network destinations, potentially leading to the exfiltration of sensitive data such as cloud provider credentials or internal service responses.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-03-11 20:01:24 UTC 
Quill provides simple mac binary signing and notarization from any platform. Quill before version v0.7.1 contains a Server-Side Request Forgery (SSRF) vulnerability when attempting to fetch the Apple notarization submission logs. Exploitation requires the ability to modify API responses from Apple's notarization service, which is not possible under standard network conditions due to HTTPS with proper TLS certificate validation; however, environments with TLS-intercepting proxies (common in corporate networks), compromised certificate authorities, or other trust boundary violations are at risk. When retrieving submission logs, Quill fetches a URL provided in the API response without validating that the scheme is https or that the host does not point to a local or multicast IP address. An attacker who can tamper with the response can supply an arbitrary URL, causing the Quill client to issue HTTP or HTTPS requests to attacker-controlled or internal network destinations. This could lead to exfiltration of sensitive data such as cloud provider credentials or internal service responses. Both the Quill CLI and library are affected when used to retrieve notarization submission logs. This vulnerability is fixed in 0.7.1.