CVE-2026-24735 | Apache Answer: Revision API Improper Access Control leads to Information Disclosure

Exposure of Private Personal Information to an Unauthorized Actor vulnerability in Apache Answer. This issue affects Apache Answer: through 1.7.1. An unauthenticated API endpoint incorrectly exposes full revision history for deleted content. This allows unauthorized user to retrieve restricted or sensitive information. Users are recommended to upgrade to version 2.0.0, which fixes the issue.

Published: 2026-02-04 Last update: 2026-02-06 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-24735 is rated Low Risk (31.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.02%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-24735

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-02-04 — 0.02% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-24735

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 134c704f-9b21-4f2e-91b3-4a467353bcc0

Weakness enumeration for CVE-2026-24735

GitHub Security Advisory for CVE-2026-24735

GHSA-5w5r-8xc6-2xhw · Severity: medium · Ecosystem: go — Apache Answer Exposure of Private Personal Information to an Unauthorized Actor vulnerability

Affected software / configurations for CVE-2026-24735

Vendor Product Version Raw CPE
apache answer < 2.0.0 cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:*

References for CVE-2026-24735

URL Tags
https://lists.apache.org/thread/whxloom7mpxlyt5wzdskflsg5mzdzd60 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/02/04/1 Mailing List Third Party Advisory
cvelogic Threat Intelligence