CVE-2026-90799NVD

Vulnerability Summary

Unsafe binary deserialisation in chttpd in Apache CouchDB 3.5.2 and below on all platforms allows an authenticated user to cause a denial of service via memory exhaustion.

Users are recommended to upgrade to version 3.5.3, which fixes this issue.

Severity Level

LOW(1.3)

Published Date

Oct 20, 2026

Last Modified

Oct 20, 2026

Exploitation Status

No confirmed exploitation yet

EPSS Score (30-Day)

Data Pending

Root Weakness (CWE)

N/A

CVSS v4.0 Base Metrics — Score 1.3 (LOW)

Attack VectorNetwork

Attack ComplexityLow

Attack RequirementsNone

Privileges RequiredLow

User InteractionNone

Confidentiality (Vulnerable System)None

Integrity (Vulnerable System)None

Availability (Vulnerable System)Low

Confidentiality (Subsequent System)None

Integrity (Subsequent System)None

Availability (Subsequent System)Low

Affected & Patched Versions

Affected Versions

Apache Software Foundation Apache CouchDB < 3.5.3

Patched Versions

Apache Software Foundation Apache CouchDB 3.5.3

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