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CVE-2026-31960— DoS in Quill via unbounded read of HTTP response body during notarization

Quick assessment

Affected
anchore quill
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Quill是Quill开源的一个应用软件。提供应用编辑器功能。 Quill 0.7.1之前版本存在安全漏洞，该漏洞源于Apple公证过程中无限制读取HTTP响应主体，可能导致内存耗尽和崩溃。

CVSS 5.3 · Medium EPSS 0.12% · P2

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-31960

Vulnerability Information
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Vulnerability Title
DoS in Quill via unbounded read of HTTP response body during notarization
Source: CVE Program / CVE List V5
Vulnerability Description
Quill provides simple mac binary signing and notarization from any platform. Quill before version v0.7.1 has unbounded reads of HTTP response bodies during the Apple notarization process. 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 processing HTTP responses during notarization, Quill reads the entire response body into memory without any size limit. An attacker who can control or modify the response content can return an arbitrarily large payload, causing the Quill client to run out of memory and crash. The impact is limited to availability; there is no effect on confidentiality or integrity. Both the Quill CLI and library are affected when used to perform notarization operations. This vulnerability is fixed in 0.7.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5
Vulnerability Title
Quill 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Quill是Quill开源的一个应用软件。提供应用编辑器功能。 Quill 0.7.1之前版本存在安全漏洞，该漏洞源于Apple公证过程中无限制读取HTTP响应主体，可能导致内存耗尽和崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
anchore quill < 0.7.1 -

II. Public POCs for CVE-2026-31960

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III. Intelligence Information for CVE-2026-31960

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Vendor Advisories for CVE-2026-31960 (1)

Same Patch Batch · anchore · 2026-03-11 · 3 CVEs total

CVE-2026-31961 5.5 MEDIUM Unbounded memory allocation in Quill via unvalidated size fields in Mach-O binary parsing
CVE-2026-31959 5.3 MEDIUM SSRF in Quill via unvalidated URL from Apple notarization log retrieval

IV. Related Vulnerabilities

Same product: quill
Same vendor: anchore
Same weakness: CWE-770

V. Comments for CVE-2026-31960

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