CVE-2026-106436
CVE-2026-106436 · Application denial of service and data truncation via unchecked BSON append failures in MongoDB PHP Driver
This page contains facts from public vulnerability sources. Check the original advisory before updating.
The BSON encoder in the MongoDB PHP Driver does not check some return values after a document exceeds libbson's size limit. This can leave the encoder in an invalid state. An unauthenticated actor who can cause an affected application to encode an unusually large data structure can terminate the PHP worker or cause the resulting document to omit fields. No MongoDB server connection or database authentication is required.
CVSS 6.3 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
php driver
- Versions
- ≥ 1.3.0, < 1.21.11: Affected (semver)
- ≥ 2.0.0, < 2.1.11: Affected (semver)
- ≥ 2.2.0, < 2.5.4: Affected (semver)
Update to 1.21.11; Update to 2.1.11; Update to 2.5.4
php-mongodb Debian:12
- Versions
- 1.15.0+1.11.1+1.9.2+1.7.5-1
- 1.19.3-1
- 1.19.4-2
- 1.19.4-3~exp2
- 1.19.4-3~exp3
- 1.19.4-3~exp4
- 1.20.0-1
- 1.20.1-1
- 1.21.0-1
- 2.0.0-1
- 2.1.0-1
- 2.5.3-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
php-mongodb Debian:13
- Versions
- 2.0.0-1
- 2.0.0-1+deb13u1
- 2.1.0-1
- 2.5.3-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
php-mongodb Debian:14
- Versions
- 2.0.0-1
- 2.1.0-1
- 2.5.3-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
php-mongodb Ubuntu:16.04:LTS
- Versions
- 1.1.2-2~ubuntu1
- 1.1.5-1~build1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
php-mongodb Ubuntu:18.04:LTS
- Versions
- 1.2.3-1build1
- 1.3.4-1build1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
php-mongodb Ubuntu:20.04:LTS
- Versions
- 1.5.5-1build1
- 1.6.1-4
- 1.6.1-4build1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
php-mongodb Ubuntu:22.04:LTS
- Versions
- 1.9.0+1.7.5-2build2
- 1.11.1+1.9.2+1.7.5-4
- 1.12.0+1.9.2+1.7.5-3
- 1.12.0+1.9.2+1.7.5-4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
php-mongodb Ubuntu:24.04:LTS
- Versions
- 1.15.0+1.11.1+1.9.2+1.7.5-1build1
- 1.15.0+1.11.1+1.9.2+1.7.5-1ubuntu1
- 1.15.0+1.11.1+1.9.2+1.7.5-1ubuntu2
- 1.15.0+1.11.1+1.9.2+1.7.5-1ubuntu3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
php-mongodb Ubuntu:26.10
- Versions
- 2.1.7-0ubuntu1
- 2.1.7-0ubuntu2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
php-mongodb Ubuntu:26.04:LTS
- Versions
- 2.1.0-1
- 2.1.7-0ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published