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TI-2026-36172 Aliases CVE-2026-48912GHSA-536r-pphc-ghq8

Authorization bypass in Apache Answer

Priority LOW 29CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-639.

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0047 40th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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 2.0.1—No fix listedCNA
  • Apache Answer VendorApache Affected up to 2.0.1 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:*before 2.0.2VulnerableApache
  • cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:* Versions before 2.0.2 Vulnerable ·Apache

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-48912
  2. 2026-10-03 Alias added: GHSA-536r-pphc-ghq8

References

Advisory 2

  • 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-2026-19940 Apache Answer: Revision API Improper Access Control leads to Information Disclosure CVSS 3.1HIGH 7.5
See all 23 →

Sources

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