Vulnerability-Lookup

CVE-2026-48912 (GCVE-0-2026-48912)

Vulnerability from cvelistv5 – Published: 2026-08-05 15:10 – Updated: 2026-08-06 14:37

Title

Apache Answer: Improper authorization in avatar update cleanup allows authenticated users to delete arbitrary uploaded files by URL

Summary

Improper Input Validation vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.1. A missing ownership check in the avatar-cleanup logic allows any authenticated user to delete other users' uploaded files by supplying their file URLs. Users are recommended to upgrade to version 2.0.2, which fixes the issue.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-639 - Authorization Bypass Through User-Controlled Key

Assigner

apache

References

2 references

URL	Tags
https://lists.apache.org/thread/b9jnttmspd9kp4vgb…	vendor-advisory
http://www.openwall.com/lists/oss-security/2026/0…

Impacted products

1 product

Vendor	Product	Version
Apache Software Foundation	Apache Answer	Affected: 0 , ≤ 2.0.1 (semver)

Credits

tonghuaroot

Show details on NVD website

JSON

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GHSA-536R-PPHC-GHQ8

Vulnerability from github – Published: 2026-08-05 18:31 – Updated: 2026-08-06 15:32

Details

Improper Input Validation vulnerability in Apache Answer.

This issue affects Apache Answer: through 2.0.1.

A missing ownership check in the avatar-cleanup logic allows any authenticated user to delete other users' uploaded files by supplying their file URLs. Users are recommended to upgrade to version 2.0.2, which fixes the issue.

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-48912"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-639"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-05T16:16:57Z",
    "severity": "MODERATE"
  },
  "details": "Improper Input Validation vulnerability in Apache Answer.\n\nThis issue affects Apache Answer: through 2.0.1.\n\n A missing ownership check in the avatar-cleanup logic allows any authenticated user to delete other users\u0027 uploaded files by supplying their file URLs.\nUsers are recommended to upgrade to version 2.0.2, which fixes the issue.",
  "id": "GHSA-536r-pphc-ghq8",
  "modified": "2026-08-06T15:32:33Z",
  "published": "2026-08-05T18:31:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-48912"
    },
    {
      "type": "WEB",
      "url": "https://lists.apache.org/thread/b9jnttmspd9kp4vgbvb32dcqb4201flq"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2026/08/05/11"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-48912 (GCVE-0-2026-48912)

GHSA-536R-PPHC-GHQ8

Tags

Sightings

Nomenclature