CVE-2026-90797 Apache CouchDB - Denial of Service

Apache CouchDB <= 3.5.2 contains a denial of service caused by unlimited gzip decompression in chttpd, letting remote clients exhaust memory, exploit requires no special conditions.

CVSS base score 7.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:Y/R:A/V:D/RE:M/U:Red
Published
20 October 2026
Updated
21 October 2026
Weakness
CWE-409

Vendor fix

Upgrade to version 3.5.3.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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