CVE-2026-81523: Cross-tenant database retargeting via dot/NUL injection in namespace strings in libmongocrypt
MongoDB · libmongocrypt
Vendor fix available · Affected: MongoDB libmongocrypt · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 0% of scored CVEs
DescriptionCVE.org
A missing input-validation issue in MongoDB libmongocrypt's automatic-encryption context setup allows a caller-supplied database identifier to be accepted without sanitization. The resulting impact is limited to incorrect schema selection, which may lead to limited disclosure or modification of information handled by the application.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- MongoDB · libmongocryptfrom 1.0.0 before 1.20.3
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- MongoDB
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-81523 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.