CVE catalog
CVE-2026-81523
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
- Severity
- Medium · CVSS 4.4
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.10% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | libmongocrypt | sid | 1.21.1-1 | fixed |
| Debian | libmongocrypt | forky | 1.21.0-1 | fixed |
| Debian | libmongocrypt | trixie | 1.13.2-1+deb13u1 | fixed |
| Debian | libmongocrypt | bookworm | 1.7.2-1 | vulnerable |
| Cpe | libmongocrypt | Not reported | 1.20.3 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libmongocrypt | source | sid | 1.20.3-1 | not yet assigned | Not reported | Not reported |
| Debian | libmongocrypt | source | forky | 1.20.3-1 | not yet assigned | Not reported | Not reported |
| Debian | libmongocrypt | source | trixie | 1.13.2-1+deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | libmongocrypt | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Cpe | libmongocrypt | cpe | Not reported | 1.20.3 | Not reported | NVD-CVE-2026-81523 | Not reported |
Notes
[bookworm] libmongocrypt: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libmongocrypt0]Affected
Source package: [libmongocrypt]
Details (2)
1.7.2-1· amd64 · bookwormAffected
nvd · libmongocrypt · debian · bookworm; nvd · libmongocrypt · debian · 12
1.7.2-1· arm64 · bookwormAffected
nvd · libmongocrypt · debian · bookworm; nvd · libmongocrypt · debian · 12
- [libmongocrypt-dev]Affected
Source package: [libmongocrypt]
Details (2)
1.7.2-1· amd64 · bookwormAffected
nvd · libmongocrypt · debian · bookworm; nvd · libmongocrypt · debian · 12
1.7.2-1· arm64 · bookwormAffected
nvd · libmongocrypt · debian · bookworm; nvd · libmongocrypt · debian · 12
[Debian 13 (Trixie)]
- [libmongocrypt0]Affected
Source package: [libmongocrypt]
Details (2)
1.13.2-1· amd64 · trixieAffected · Fixed:
1.13.2-1+deb13u1nvd · libmongocrypt · debian · 13
1.13.2-1· arm64 · trixieAffected · Fixed:
1.13.2-1+deb13u1nvd · libmongocrypt · debian · 13
- [libmongocrypt-dev]Affected
Source package: [libmongocrypt]
Details (2)
1.13.2-1· amd64 · trixieAffected · Fixed:
1.13.2-1+deb13u1nvd · libmongocrypt · debian · 13
1.13.2-1· arm64 · trixieAffected · Fixed:
1.13.2-1+deb13u1nvd · libmongocrypt · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-81523]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-81523]
- [https://security-tracker.debian.org/tracker/CVE-2026-81523]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-81523.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3066.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]