CVE-2026-84968 — Heap out-of-bounds read via corrupt nested BSON in field path error message
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 a…
Published: 2026-09-03 · CVSS: 6.9 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7