CVE-2026-31959: Github.com/anchore/quill Quill Vulnerable To SSRF Vulnerability
MODERATECVE-2026-31959 is a MODERATE (CVSS 5.3) quill vulnerable to ssrf vulnerability (CWE-20: Improper Input Validation) affecting Github.com/anchore/quill libraries in the Go ecosystem. The issue involves quill vulnerable to ssrf via unvalidated url from apple notarization log retrieval. Remediation is available by upgrading affected packages to version 0.7.1.
CVE-2026-31959 at a Glance
Security Impact
CVSS: 5.3
The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).
How to Fix CVE-2026-31959
To remediate this vulnerability, upgrade all affected Github.com/anchore/quill dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.
Upgrade github.com/anchore/quill to 0.7.1Run the following command in your project directory to verify that all resolved dependencies use the patched release:
inspect dependencies for github.com/anchore/quillHow to Check if You Are Affected
To determine whether your application is affected by CVE-2026-31959, inspect your project dependencies for Github.com/anchore/quill:
inspect dependencies for github.com/anchore/quillAnalyze the terminal output to locate any version of Github.com/anchore/quill in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.7.1), your application is affected.
Note: Verify declared build manifests and deployed runtime container environments.
Technical Details
Vulnerability Mechanism & Technical Analysis
This vulnerability is classified under CWE-20: Improper Input Validation, where the product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. In Github.com/anchore/quill, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.
Source Advisory Statement
CVE-2026-31959 Affected Github.com/anchore/quill Versions
1 component(s)| Product / Package | Ecosystem | Affected Versions | Fixed Version |
|---|---|---|---|
|
github.com/anchore/quill
|
Go |
< 0.7.1
|
0.7.1
|
References
Frequently Asked Questions
What is CVE-2026-31959?
Which Github.com/anchore/quill versions are affected?
What version fixes CVE-2026-31959?
Is github.com/anchore/quill affected?
What is the CVSS score of CVE-2026-31959?
What CWE is associated with CVE-2026-31959?
How can I check Go dependencies for CVE-2026-31959?
Machine-readable OSV JSON
OSV v1.5 Schema
{
"schema_version" : "1.4.0",
"id" : "GHSA-7q3q-5px6-4c5p",
"modified" : "2026-03-11T21:37:49Z",
"published" : "2026-03-11T00:37:44Z",
"aliases" : [ "CVE-2026-31959" ],
"summary" : "Quill vulnerable to SSRF via unvalidated URL from Apple notarization log retrieval",
"details" : "### Impact\n\nQuill 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.\n\nWhen 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.\n\n\n### Patches\n\nFixed in Quill version `v0.7.1`\n\n\n### Workarounds\n\nNone\n\n### Credit\n\nAnchore would like to thank opera-aklajn (Opera) for reporting this vulnerability\n\n### Resources\n\n- [Apple Get Submission Log API Documentation](https://developer.apple.com/documentation/notaryapi/get-submission-log)",
"severity" : [ {
"type" : "CVSS_V3",
"score" : "CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
} ],
"affected" : [ {
"package" : {
"ecosystem" : "Go",
"name" : "github.com/anchore/quill"
},
"ranges" : [ {
"type" : "ECOSYSTEM",
"events" : [ {
"introduced" : "0"
}, {
"fixed" : "0.7.1"
} ]
} ]
} ],
"references" : [ {
"type" : "WEB",
"url" : "https://github.com/anchore/quill/security/advisories/GHSA-7q3q-5px6-4c5p"
}, {
"type" : "ADVISORY",
"url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-31959"
}, {
"type" : "WEB",
"url" : "https://github.com/anchore/quill/commit/e41d66a517c2dc20ad8e9fbccffbdc6ba5ef0020"
}, {
"type" : "WEB",
"url" : "https://developer.apple.com/documentation/notaryapi/get-submission-log"
}, {
"type" : "PACKAGE",
"url" : "https://github.com/anchore/quill"
}, {
"type" : "WEB",
"url" : "https://github.com/anchore/quill/releases/tag/v0.7.1"
} ],
"database_specific" : {
"cwe_ids" : [ "CWE-20", "CWE-918" ],
"severity" : "MODERATE",
"github_reviewed" : true,
"github_reviewed_at" : "2026-03-11T00:37:44Z",
"nvd_published_at" : "2026-03-11T20:16:16Z"
}
}