Vulnerability details
CVE-2026-90910
Apache Software Foundation Apache Answer
Apache Answer: Reaction API authorization bypass for restricted content
CVSS 3.1
9.8Critical
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apache Software Foundation | Apache Answer | v ≤ 2.0.2 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-10-19
- Last updated
- 2026-10-19
- State
- Published
- Assigner (CNA)
- apache
- Kolun priority
- 25 · Low
Exploit prediction (EPSS)
0.47%
Probability of exploitation in 30 days
41.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-306Missing authentication for critical function