TI-2026-76333 Aliases CVE-2026-86589 GHSA-9w3m-gv8w-f7ww

Apache Answer keeps sessions after central account suspension

LOW 24CWE-303Published 2026-10-19 · Updated 2026-10-30

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.

Summary

Apache Answer through 2.0.2 has an incorrect authentication implementation (CWE-303) in its User Center login integration. A newly created external user session omits the external identity, so later requests skip central account suspension and deletion checks. A remote user with low privileges can keep access after the central account is suspended or deleted, until the session expires or is revoked.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

Incorrect implementation of authentication algorithm vulnerability in Apache Answer. This issue affects Apache Answer: through 2.0.2. A flaw in the User Center login integration can cause a newly created external user session to omit its external identity, allowing subsequent requests to bypass central account suspension or deletion checks until the session expires or is revoked. 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 0.00254 16th 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

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 · 2026-10-30

Timeline

2026-10-19 Threatist record created from CVE-2026-86589
2026-10-19 Alias added: GHSA-9w3m-gv8w-f7ww
2026-10-30 CVSS score added · CISA ADP
2026-10-30 CISA SSVC decision points changed

References

Advisory 1

https://lists.apache.org/thread/t8mbzfolzlqz4z5hcwq3v0lnwjqb2tl5

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Sources

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