8.2

CVE-2026-106432: mongodb php_driver

CVSS: 8.2v3.1HighAnalyzed
AliasesDEBIAN-CVE-2026-106432UBUNTU-CVE-2026-106432
Published 08-10-2026Last modified 08-10-2026
Open JSON

Vulnerability summary

CVE-2026-106432 is a high (CVSS 8.2) vulnerability in mongodb php_driver. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.9% of scored vulnerabilities.

Overall risk
33/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.2/10
010
High · v3.1 (NVD)
EPSS score
0.17%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-10-2026
    PublishedVulnerability first disclosed.
  2. 08-10-2026
    Last modifiedVulnerability information updated.

Description

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 metrics

7 scores · 4 sources · 2 versions

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

09-10-202619-10-2026
EPSS score
0.17%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • php-mongodbAll versions (No fix recorded)
Mongodb1 product
  • php_driver≥ 1.16.0, < 1.21.11 | ≥ 1.3.0, < 1.21.1 | ≥ 2.0.0, < 2.1.11 | ≥ 2.2.0, < 2.5.4
Ubuntu1 product
  • php-mongodbAll versions (No fix recorded)

3 vendors · 3 products

References

4 links