TI-2026-76290 Aliases CVE-2026-64945 GHSA-4242-4jmj-g584

Incorrect permission check in Apache Answer lets users hide questions

LOW 39CWE-863Published 2026-10-19 · Updated 2026-11-03

Key facts

Attack vector: Network
Privileges required: None
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-863.

Summary

Apache Answer through 2.0.2 contains an incorrect authorization flaw (CWE-863). The question operation controller checks the unpin permission instead of the hide permission when hiding or showing questions. In custom role setups that separate these permissions, a remote user granted only the unpin permission can hide or restore questions.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

A vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. The question operation controller gates hide/show operations on the wrong permission check result (the unpin permission instead of the hide permission), so in custom role configurations that separate these permissions, a user granted only question.unpin can hide or restore questions without holding question.hide or question.show. 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 0.00301 23rd 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: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Apache	Apache Answer	up to 2.0.2	—	No fix listed	CNA

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.

CPE	Versions	Role	Vendor
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 · 2026-11-03

Timeline

2026-10-19 Threatist record created from CVE-2026-64945
2026-10-19 Alias added: GHSA-4242-4jmj-g584
2026-11-03 CVSS score added · CISA ADP
2026-11-03 CISA SSVC decision points changed

References

Advisory 1

https://lists.apache.org/thread/3wdqq1vp449bty5ovs02f0894km07wmz

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Sources

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