CVE-2026-84968Heap out-of-bounds read via corrupt nested BSON in field path error message
Updated under an hour ago ()
Does this affect you?
It affects MongoDB PHP Driver. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
- Weakness (CWE)
- CWE-125
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mongodb
- NVD analysis
- Analyzed
- Record last updated
- Sep 4, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MongoDB PHP Driver mongodb:php_driver (from the name) | from 1.15.0 before 1.21.8; from 2.0.0 before 2.1.9; from 2.2.0 before 2.5.1 | CNA record |
mongodb php_driver mongodb:php_driver | from 1.15.0 before 1.21.9; from 2.0.0 before 2.1.9; from 2.2.0 before 2.5.2 | NVD |
References
- https://jira.mongodb.org/browse/PHPC-2744vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.