HIGHCVSS 7.1Vulnerability
CVE-2026-81529
Improper neutralization of delimiters in connection-URL construction allows connection-option injection in the MongoDB C# Driver. When an application passes untrusted text into the driver's connection-URL builder and round-trips the builder back into a client configuration, the untrusted text is serialized without neutralizing the URL/option delimiters and is then re-parsed as authoritative connection options. A low-privileged user of such an application can thereby introduce or suppress security-relevant connection settings.
Properties
- severity
- HIGH
- epss_score
- 0.00278
- cvss_severity
- HIGH
- cvss_score
- 7.1
- retrieved_at
- 2026-09-29T22:27:20+00:00
- last_source
- FIRST EPSS
- score
- 7.1
- cve_id
- CVE-2026-81529
- cvss_vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
- signal_observed_at
- 2026-09-29T22:17:56+00:00
- vector
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
- published_at
- 2026-08-27T20:18:51.480
- last_modified
- 2026-09-29T19:16:22.150
- epss_percentile
- 0.1823
Related Entities (4)
ENRICHED_BY (1)
→[Source]FIRST EPSS
AFFECTS_PRODUCT (1)
→[Product]
DESCRIBED_BY (1)
→[Source]NVD
HAS_WEAKNESS (1)
→[Weakness]Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
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