8.6

CVE-2026-81525: mongodb php_driver

CVSS: 8.6v4.0HighAnalyzed
AliasesUBUNTU-CVE-2026-81525DEBIAN-CVE-2026-81525
Published 27-08-2026Last modified 28-08-2026
Open JSON

Vulnerability summary

CVE-2026-81525 is a high (CVSS 8.6) vulnerability in mongodb php_driver. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 40.7% of scored vulnerabilities.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.6/10
010
High · v4.0 (CVE.org)
EPSS score
0.49%
0%100%
Low · +0.22 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 27-08-2026
    PublishedVulnerability first disclosed.
  2. 28-08-2026
    Last modifiedVulnerability information updated.

Description

The MongoDB client library for PHP does not sufficiently sanitize special elements in application-supplied namespace identifiers before using them to construct the target namespace for database operations. An application that incorporates untrusted text into these identifiers may have operations silently directed at a different storage location than the one the application intended.

CVSS metrics

7 scores · 4 sources · 2 versions

EPSS trend

Probability

0.49%

Chance of exploitation in the next 30 days

Percentile

41%

Versus all other CVEs

30-day change

+0.22 pp

From 0.27% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.49%

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

Mongodb3 products
Debian1 product
  • php-mongodbAll versions (No fix recorded)
Ubuntu1 product
  • php-mongodbAll versions (No fix recorded)

3 vendors · 5 products

References

8 links