CVE-2026-106432
CVE-2026-106432 · Heap buffer overflow via 32-bit string-length truncation 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 converts a string length to a 32-bit value without validation. When an affected application encodes a string near 4 GiB, the allocation size can wrap while the copy operation uses the original length. The resulting heap buffer overflow can corrupt process memory or terminate the PHP process. Reaching this issue requires a non-default runtime configuration that permits multi-gigabyte values. No MongoDB server interaction is required.
CVSS 2.0 · Low · EPSS 0.2% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
php driver
- Versions
- ≥ 1.16.0, < 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