Read the docs
TI-2026-76334 Aliases CVE-2026-90910GHSA-q532-rv5p-f5vr

Apache Answer reaction API bypasses content visibility controls

Priority MEDIUM 49CWE-306Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-306.

Summary

Apache Answer through 2.0.2 is affected by a missing authentication flaw (CWE-306) in its reaction API. The API does not enforce content visibility controls, so an unauthenticated remote attacker can read reaction metadata from restricted content or add and remove their own reactions.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Missing authentication for critical function vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. The reaction API did not enforce content visibility controls, allowing unauthorized users to read reaction metadata from restricted content or add and remove their own reactions. Users are recommended to upgrade to version 2.0.3, which fixes the issue.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00479 41st 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
Yes
Technical impact
Total

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 2.0.2—No fix listedCNA
  • Apache Answer VendorApache Affected up to 2.0.2 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:*——Apache
  • cpe:2.3:a:apache:answer:*:*:*:*:*:*:*:* Versions — — ·Apache

Remediation

Upgrade Apache Answer to version 2.0.3, which fixes the issue.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-19 Threatist record created from CVE-2026-90910
  2. 2026-10-19 Alias added: GHSA-q532-rv5p-f5vr
  3. 2026-10-20 CVSS score added · CISA ADP
  4. 2026-10-20 CISA SSVC decision points changed
  5. 2026-10-20 Priority changed: LOW → MEDIUM

References

Advisory 1

  • TI-2025-18529 Apache Tomcat: Potential RCE and/or information disclosure and/or information corruption with partial PUT KEVCVSS 3.1CRITICAL 10.0
  • TI-2024-30292 Apache OFBiz: Confused controller-view authorization logic (forced browsing) KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-26062 Apache OFBiz: Unauthenticated endpoint could allow execution of screen rendering code KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-21190 Apache OFBiz: Path traversal leading to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-18186 Apache HugeGraph-Server: Command execution in gremlin KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-25106 Deserialization of untrusted data in Apache ActiveMQ KEVCVSS 3.1CRITICAL 10.0
See all 4053 →

Sources

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