CVE-2026-48911 json
Apache Answer: Unauthenticated OAuth Email-Binding Account Takeover via Existing User Confirmation Flow
published 2026-08-05 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-53397
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 47%
- public exploits
- 0
- none known
Summary
Insufficient Verification of Data Authenticity vulnerability in Apache Answer.
This issue affects Apache Answer: through 2.0.1.
A missing authorization check in the external-login email binding flow allows unauthenticated attackers to take over arbitrary user accounts by tricking victims into clicking a crafted confirmation link. Users are recommended to upgrade to version 2.0.2, which fixes the issue.
Patch / fix
- apache answer 2.0.2
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 3 mo ago
Exploit prediction
0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected products
- Apache Software Foundation Apache Answer
Classification
- Weakness
-
- CWE-306 Missing Authentication for Critical Functionality
References
-
lists.apache.org
/thread/mrlwtdnhqqgfbchjgq6rffkz67o8wyv8
vendor-advisory, mailing-list
-
openwall.com
/lists/oss-security/2026/08/05/10
mailing-list, third-party-advisory
Sources
- CVE List CVE-2026-48911
- NVD CVE-2026-48911
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.