CVE-2025-29868: Github.com/apache/answer Apache Answer User Using External Vulnerability

LOW
Advisory Identifier: GHSA-wqcc-mfhw-53pc
Share
CVSS 6.5
CWE-495
Published
Advisory Summary

CVE-2025-29868 is a LOW (CVSS 6.5) apache answer user using external vulnerability (CWE-495: Private Data Structure Returned From A Public Method) affecting Github.com/apache/answer libraries in the Go ecosystem. The issue involves apache answer user using external images potentially discloses user information. Remediation is available by upgrading affected packages to version 1.4.5.

CVE-2025-29868 at a Glance

CVE Identifier CVE-2025-29868
GHSA Identifier GHSA-wqcc-mfhw-53pc
Severity LOW
CVSS v3.1 Base Score 6.5
CWE Classification CWE-495: Private Data Structure Returned From A Public Method
Affected Product Github.com/apache/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-2025-29868

To remediate this vulnerability, upgrade all affected Github.com/apache/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/answer fixed: 1.4.5 
Upgrade github.com/apache/answer to 1.4.5
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/answer

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-29868, inspect your project dependencies for Github.com/apache/answer:

inspect dependencies for github.com/apache/answer

Analyze the terminal output to locate any version of Github.com/apache/answer in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 1.4.5), 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-495: Private Data Structure Returned From A Public Method, where the product has a method that is declared public, but returns a reference to a private data structure, which could then be modified in unexpected ways. In Github.com/apache/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

Private Data Structure Returned From A Public Method vulnerability in Apache Answer. This issue affects Apache Answer: through 1.4.2. If a user uses an externally referenced image, when a user accesses this image, the provider of the image may obtain private information about the ip address of that accessing user. Users are recommended to upgrade to version 1.4.5, which fixes the issue. In the new version, administrators can set whether external content can be displayed.

CVE-2025-29868 Affected Github.com/apache/answer Versions

1 component(s)
Fixed Versions:
1.4.5
Product / Package Ecosystem Affected Versions Fixed Version
github.com/apache/answer
golang/github.com/apache/answer
Go
< 1.4.5
1.4.5

References

NVD — CVE-2025-29868 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-29868
Github.com/apache/answer Source Repository REPOSITORY
https://github.com/apache/answer/issues/1250
Github.com/apache/answer Source Repository REPOSITORY
https://github.com/apache/answer
lists.apache.org/thread/l7pohw5g03g3... WEB
https://lists.apache.org/thread/l7pohw5g03g3qsvrz8pqc9t29mdv5lhf
Github.com/apache/answer Security Information SECURITY
http://www.openwall.com/lists/oss-security/2025/04/01/2
Github.com/apache/answer Security Information SECURITY
http://www.openwall.com/lists/oss-security/2025/04/02/1
Github.com/apache/answer Security Information SECURITY
http://www.openwall.com/lists/oss-security/2025/04/10/3

Frequently Asked Questions

What is CVE-2025-29868?
CVE-2025-29868 is a security vulnerability in Github.com/apache/answer involving Apache Answer User Using External Images Potentially Discloses User Information under CWE-495: Private Data Structure Returned From A Public Method.
Which Github.com/apache/answer versions are affected?
Affected versions include releases prior to 1.4.5 across affected packages: github.com/apache/answer.
What version fixes CVE-2025-29868?
Upgrading to 1.4.5 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/apache/answer affected?
Yes, github.com/apache/answer is affected in releases prior to 1.4.5. Upgrade your dependency to 1.4.5 or later.
What is the CVSS score of CVE-2025-29868?
CVE-2025-29868 has a CVSS v3.1 base score of 6.5 (LOW) 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-2025-29868?
CVE-2025-29868 is classified under CWE-495: Private Data Structure Returned From A Public Method (The product has a method that is declared public, but returns a reference to a private data structure, which could then be modified in unexpected ways.).
How can I check Go dependencies for CVE-2025-29868?
Run the dependency tree command: 'inspect dependencies for github.com/apache/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-wqcc-mfhw-53pc",
  "modified" : "2025-04-10T22:59:22Z",
  "published" : "2025-04-01T09:30:20Z",
  "aliases" : [ "CVE-2025-29868" ],
  "summary" : "Apache Answer User Using External Images Potentially Discloses User Information",
  "details" : "Private Data Structure Returned From A Public Method vulnerability in Apache Answer.\n\nThis issue affects Apache Answer: through 1.4.2.\n\nIf a user uses an externally referenced image, when a user accesses this image, the provider of the image may obtain private information about the ip address of that accessing user.\nUsers are recommended to upgrade to version 1.4.5, which fixes the issue. In the new version, administrators can set whether external content can be displayed.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/apache/answer"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "1.4.5"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-29868"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/apache/answer/issues/1250"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/apache/answer"
  }, {
    "type" : "WEB",
    "url" : "https://lists.apache.org/thread/l7pohw5g03g3qsvrz8pqc9t29mdv5lhf"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2025/04/01/2"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2025/04/02/1"
  }, {
    "type" : "WEB",
    "url" : "http://www.openwall.com/lists/oss-security/2025/04/10/3"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-495" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-04-01T18:20:03Z",
    "nvd_published_at" : "2025-04-01T08:15:14Z"
  }
}