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TI-2026-19940 Aliases CVE-2026-24735GHSA-5w5r-8xc6-2xhw

Apache Answer: Revision API Improper Access Control leads to Information Disclosure

Priority MEDIUM 40CWE-359Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-359.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00645 51st percentileScored 2026-11-07
Fix Fixed github.com/apache/answer (Go): 2.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Answerup to 1.7.1—No fix listedCNA
—github.com/apache/answer (Go)before 2.0.02.0.0Patch availableGHSA-5w5r-8xc6-2xhw
  • Apache Answer VendorApache Affected up to 1.7.1 Fixed in — No fix listed CNA
  • github.com/apache/answer (Go) Vendor— Affected before 2.0.0 Fixed in 2.0.0 Patch available GHSA-5w5r-8xc6-2xhw

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:*before 2.0.0VulnerableApache
  • cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:* Versions before 2.0.0 Vulnerable ·Apache

Remediation

  • Fix · GHSA-5w5r-8xc6-2xhw github.com/apache/answer (Go) Fixed in 2.0.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-24735
  2. 2026-10-03 Alias added: GHSA-5w5r-8xc6-2xhw

References

Advisory 3

Other 1

  • TI-2024-14967 Apache Answer: Pixel Flood Attack by uploading the large pixel file CVSS 3.1CRITICAL 9.1
  • TI-2026-42802 Apache Answer: Residual Administrative API Key Access After Role or Account Revocation CVSS 3.1CRITICAL 9.1
  • TI-2026-42790 Apache Answer: Unauthorized disclosure of deleted or pending answer content CVSS 3.1HIGH 7.5
  • TI-2026-36171 Apache Answer: Unauthenticated OAuth Email-Binding Account Takeover via Existing User Confirmation Flow CVSS 3.1HIGH 7.5
  • TI-2026-36100 Apache Answer: Denial of service via crafted Accept-Language header parsing CVSS 3.1HIGH 7.5
  • TI-2026-26357 Apache Answer: The custom avatar was not properly validated CVSS 3.1MEDIUM 6.5
See all 23 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences