Description
An out-of-bounds read in the BSON decoding component of the MongoDB PHP driver may allow an unauthenticated party who supplies specially formed input to have a small amount of adjacent process memory copied into an error message that is returned to application code. This may result in unintended disclosure of limited memory contents.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| MongoDB | PHP Driver | 1.15.0 – < 1.21.8, 2.0.0 – < 2.1.9, 2.2.0 – < 2.5.1 | 1.21.8 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | php-mongodb | 2.5.3-1 | — |
| Debian 13 | php-mongodb | 2.0.0-1+deb13u1 | — |
| Debian 12 | php-mongodb | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | php-mongodb | No fix yet | — |
| Ubuntu 26.04 LTS | php-mongodb | No fix yet | — |
| Ubuntu 24.04 LTS | php-mongodb | No fix yet | — |
| Ubuntu 22.04 LTS | php-mongodb | No fix yet | — |
| Ubuntu 20.04 LTS | php-mongodb | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | php-mongodb | No fix yet | — |
| Ubuntu 16.04 LTS | php-mongodb | No fix yet | — |
Advisories 1
- WID-SEC-2026-3209 MongoDB: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 4, 2026