CVE-2026-90797

High

Description

An unlimited gzip decompression routine in chttpd in Apache CouchDB 3.5.2 and below on all platforms allows any remote client to cause a denial of service via memory exhaustion. Users are recommended to upgrade to version 3.5.3, which fixes this issue.

SeverityHigh

CVSS7.7

Exploit probability—

ProductApache CouchDB

PublishedOct 20, 2026

First seenOct 20, 2026

Weakness typeCWE-409CWE-409

How to fix

Update

Apache Software Foundation Apache CouchDB3.5.3 or later

Vendor advisories

lists.apache.org/thread.html/pj83174r8f8f64odf47fwhozbfjtot0f
lists.apache.org/thread/gsbotof0qn8x6zlpd7t568ny4053jo0n

Affected products

Product	Affected versions	Fixed in
Apache Software Foundation Apache CouchDB	v < 3.5.3	3.5.3

Check your version

Choose the product and enter the version you run to see whether it falls in the affected range.

In the Intelligence 360 plan

Attack Surface Management

See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.