CVE-2026-34031: Github.com/apache/incubator answer Apache Answer Has An Unrestricted Vulnerability

MODERATE
Advisory Identifier: GHSA-x4f6-mqg6-28xx
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CVSS 6.5
CWE-434
Published
Advisory Summary

CVE-2026-34031 is a MODERATE (CVSS 6.5) apache answer has an unrestricted vulnerability (CWE-434: Unrestricted Upload of File with Dangerous Type) affecting Github.com/apache/incubator answer libraries in the Go ecosystem. The issue involves apache answer has an unrestricted upload of file with dangerous type vulnerability. Remediation is available by upgrading affected packages to version 1.7.2-0.20260511040518-11091244f64e.

CVE-2026-34031 at a Glance

CVE Identifier CVE-2026-34031
GHSA Identifier GHSA-x4f6-mqg6-28xx
Severity MODERATE
CVSS v3.1 Base Score 6.5
CWE Classification CWE-434: Unrestricted Upload of File with Dangerous Type
Affected Product Github.com/apache/incubator answer
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 6.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required None (PR:N)
User Interaction None (UI:N)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2026-34031

To remediate this vulnerability, upgrade all affected Github.com/apache/incubator answer dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/apache/incubator-answer fixed: 1.7.2-0.20260511040518-11091244f64e 
Upgrade github.com/apache/incubator-answer to 1.7.2-0.20260511040518-11091244f64e
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/apache/incubator-answer

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-34031, inspect your project dependencies for Github.com/apache/incubator answer:

inspect dependencies for github.com/apache/incubator-answer

Analyze the terminal output to locate any version of Github.com/apache/incubator answer in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.7.2-0.20260511040518-11091244f64e), 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-434: Unrestricted Upload of File with Dangerous Type, where the product allows the upload or transfer of dangerous file types that are automatically processed within its environment. In Github.com/apache/incubator answer, 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

Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.0. The server did not sufficiently validate user-supplied image URLs, allowing arbitrary external content to be embedded as profile images, which could expose users to unintended external requests and tracking by third-party servers. Users are recommended to upgrade to version 2.0.1, which fixes the issue.

CVE-2026-34031 Affected Github.com/apache/incubator answer Versions

1 component(s)
Fixed Versions:
1.7.2-0.20260511040518-11091244f64e
Product / Package Ecosystem Affected Versions Fixed Version
github.com/apache/incubator-answer
golang/github.com/apache/incubator-answer
Go
< 1.7.2-0.20260511040518-11091244f64e
1.7.2-0.20260511040518-11091244f64e

References

NVD — CVE-2026-34031 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34031
Security Fix Commit FIX COMMIT
https://github.com/apache/answer/commit/11091244f64e5a7e472edcd477c1ff4124eca7c3
Github.com/apache/incubator answer Source Repository REPOSITORY
https://github.com/apache/answer
Github.com/apache/incubator answer Release RELEASE
https://github.com/apache/answer/releases/tag/v2.0.1
lists.apache.org/thread/rwtxy39t54to... WEB
https://lists.apache.org/thread/rwtxy39t54to9kv3dqtbjsbdpyk4jkd2
Github.com/apache/incubator answer Security Information SECURITY
http://www.openwall.com/lists/oss-security/2026/06/09/4

Frequently Asked Questions

What is CVE-2026-34031?
CVE-2026-34031 is a security vulnerability in Github.com/apache/incubator answer involving Apache Answer has an Unrestricted Upload of File with Dangerous Type vulnerability under CWE-434: Unrestricted Upload of File with Dangerous Type.
Which Github.com/apache/incubator answer versions are affected?
Affected versions include releases prior to 1.7.2-0.20260511040518-11091244f64e across affected packages: github.com/apache/incubator-answer.
What version fixes CVE-2026-34031?
Upgrading to 1.7.2-0.20260511040518-11091244f64e (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/apache/incubator-answer affected?
Yes, github.com/apache/incubator-answer is affected in releases prior to 1.7.2-0.20260511040518-11091244f64e. Upgrade your dependency to 1.7.2-0.20260511040518-11091244f64e or later.
What is the CVSS score of CVE-2026-34031?
CVE-2026-34031 has a CVSS v3.1 base score of 6.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2026-34031?
CVE-2026-34031 is classified under CWE-434: Unrestricted Upload of File with Dangerous Type (The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.).
How can I check Go dependencies for CVE-2026-34031?
Run the dependency tree command: 'inspect dependencies for github.com/apache/incubator-answer'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-x4f6-mqg6-28xx",
  "modified" : "2026-07-31T15:45:20Z",
  "published" : "2026-06-09T09:32:07Z",
  "aliases" : [ "CVE-2026-34031" ],
  "summary" : "Apache Answer has an Unrestricted Upload of File with Dangerous Type vulnerability",
  "details" : "Unrestricted Upload of File with Dangerous Type vulnerability in Apache Answer.\n\nThis issue affects Apache Answer: through 2.0.0.\n\nThe server did not sufficiently validate user-supplied image URLs, allowing arbitrary external content to be embedded as profile images, which could expose users to unintended external requests and tracking by third-party servers.\nUsers are recommended to upgrade to version 2.0.1, which fixes the issue.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/apache/incubator-answer"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.7.2-0.20260511040518-11091244f64e"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-34031"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/answer/commit/11091244f64e5a7e472edcd477c1ff4124eca7c3"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/answer"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/answer/releases/tag/v2.0.1"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/rwtxy39t54to9kv3dqtbjsbdpyk4jkd2"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2026/06/09/4"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-434" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-07-31T15:45:20Z",
    "nvd_published_at" : "2026-06-09T09:16:29Z"
  }
}