CVE-2026-71563CWE-862broken-access-control

CVE-2026-71563

Medium · published October 19, 2026

CVSS v3.1
4.3
EPSS
0%
Percentile
12.3
In the wild
Unconfirmed
What it is

Missing Authorization vulnerability in Apache Answer.

This issue affects Apache Answer: through 2.0.2.

An authorization flaw in the MCP answer retrieval tool allows holders of a global API key to access answer content associated with hidden, deleted, or pending-review questions.

Users are recommended to upgrade to version 2.0.3, which fixes the issue.

The record
Technical detail
CVSS v3.1
4.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00224 · 12.3th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-10-19T14:16Z
References (2)
https://lists.apache.org/thread/msodd7g2r6xdn9wpkpdp04m9g1jb2xtl · [email protected]http://www.openwall.com/lists/oss-security/2026/10/16/27 · af854a3a-2127-422b-91ae-364da2661108
EPSS history
Timeline
  • 21 OCT 03:31Z
    EPSS moved — → 0%
    epss
  • 19 OCT 09:32Z
    Apache Answer: MCP Answer Retrieval Exposes Content from Non-Public Questions
    cvelistv5
  • 19 OCT 09:32Z
    Apache Answer: MCP Answer Retrieval Exposes Content from Non-Public Questions
    cvelistv5